Keratinized (as in the epidermis) and non-keratinized (as in the lumen of the esophagus and vagina).
Epithelial tissue, connective tissue, muscular tissue, and nervous tissue.
Dense regular connective tissue and dense irregular connective tissue.
Ectoderm, mesoderm, and endoderm.
Red blood cells (RBCs), white blood cells (WBCs), and platelets.
A sebaceous gland is a type of exocrine gland that secretes sebum, an oily substance, into hair follicles.
Connective tissue
Adrenal gland and lymph node
The tissue is stratified squamous epithelium.
On absorptive surfaces such as the small intestine and secretory surfaces such as the stomach.
Smooth muscle tissue
Kidney, heart/lung, liver
Epithelial tissue receives nourishment from associated vascularized connective tissue.
It is the structural attachment site for overlying epithelial cells and underlying connective tissue.
Mixed sero-mucous secretion.
Liver, lymph nodes, kidney, adrenal gland, etc.
An individual endocrine cell of some surface epithelial cells secretes a substance or secretory material which reaches the target cells by diffusion through the extracellular space (local extracellular space), known as the paracrine secretion.
The choroid plexus and sweat glands
Covering epithelium and glandular epithelium.
Cortisol.
Chondroblasts and chondrocytes
Myoepithelial cells are contractile cells having processes, derived from the neural crest cells.
Avascular
The major organelles and inclusions visible under an electron microscope include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and ribosomes.
All the tissues and organs.
Limited number of donors
Salivary glands produce saliva, which aids in digestion and keeps the mouth moist.
They are based on more than one secretory cell and exhibit varying degrees of complexity, such as simple or compound glands.
Tight junction
Blood vessels, gastrointestinal tracts, genito-urinary system, respiratory tracts, etc.
Dominantly mucous secretion.
Cell body (soma, perikaryon), dendrites, and axon
For absorption.
The plasma membrane, the cytoplasm, and the nucleus.
Stroma assists parenchyma by modulating its function, such as responding to cytokine production from stromal cells (e.g., macrophages, lymphocytes) during inflammation.
This tissue is adipose tissue.
A serous demilune is a crescent-shaped structure found in some salivary glands, composed of serous cells that cap mucous acini.
Parenchyma and Stroma (interstitium)
Glucose
Replacement with fibrous connective tissue.
Bioprinting with bioink (biomaterials, cells) is used to create 3D tissues or organs such as bone, skin, cornea, kidney, liver, and heart to repair tissues, augment organ function, or test drugs preclinically.
Endoderm
Bile
Lumen, Epithelium & supporting connective tissue, Smooth muscle, Connective tissue ± epithelium
Tissues are aggregates or groups of cells organized to perform one or more specific functions.
Scar formation is the process by which the body repairs damaged tissue by replacing it with fibrous connective tissue.
In the submucosa of the gastrointestinal tract (G-I) and the mesentery.
Transplantation
A serous acinus is composed of serous cells.
Dense connective tissue 'capsule'
The basal lamina and the reticular lamina.
Large pore pathway
Una glándula unicelular.
Capsule, Septae or trabeculae, Reticular tissue, Hilus
Mechanical support, vascular supply via diffusion from the capillaries, and physical & biochemical barrier
Structures may differ microscopically from their appearance when alive due to the preparation and staining processes used in histology.
Merocrine secretion involves the release of only products via exocytosis, found in eccrine and apocrine sweat glands, exocrine pancreas, and mammary glands.
Microscopic Anatomy
The underlying connective tissue (fibroblasts).
Blood vessels, nerves, Lymphatic vessels
They have a branched duct system with secretory portions that can be branching, such as compound branched tubular, acinar, or compound tubulo-acinar glands.
Prosthetic knee joint, prosthetic hip joint, mechanical heart valve.
In the excretory ducts of sweat and salivary glands, and the conjunctiva.
Basal surface and free (apical) surface
Replacement with parenchymal cells.
Serous, mucous, and mixed sero-mucous.
Cilia, Flagella, Microvilli, Stereocilia
Dependence on immunosuppression
Lamina lucida and lamina densa.
Examples include bone, skin, cornea, kidney, liver, and heart.
Central canal
Glandular epithelium cells dividing in the Cortex and Medulla
Columnar cells and short (basal) cells.
Osteoprogenitoras, osteoblastos, osteócitos e osteoclastos.
Apocrine secretion involves the release of products together with a small amount of the apical cytoplasm, found in mammary glands.
Sperms
To understand the 4 types of basic tissues and to correlate structures with their functions.
Stratified columnar epithelium is a type of epithelial tissue composed of multiple layers of column-shaped cells.
Covering epithelia protect the body surfaces and line internal cavities.
Cytogenic gland.
By diffusing hormones directly into the bloodstream
Transplantation of self tissue, such as a skin graft or nerve graft.
Stratified squamous to columnar epithelium containing numerous mucous-secreting goblet cells.
Golgi apparatus are mostly found at supra-nucleolar areas or surrounding nuclei.
Regeneration and scar formation.
Sodium ions diffuse passively through the apical membrane.
Mesoderm
Goblet (mucous-secreting) cell
Connective tissue
It consists of two layers: the dense basal lamina and the reticular lamina.
Connective tissue septum/trabecula
1. Selective diffusion barrier 2. Provides support and attachment for the epithelial cells 3. Separates connective tissue from the epithelial cells.
Salivary glands, mammary glands
Bone defects from cancer, trauma, or congenital anomalies.
Myoepithelial cells are specialized cells that have characteristics of both muscle and epithelial cells.
The tissue concept provides a basis for understanding and recognizing the many cell types within the body and how they interrelate.
They are individualized, accurately designed, and eliminate the need for autologous or allogenic bone grafts.
Myoepithelial cells are commonly found in glandular tissue, such as salivary glands, mammary glands, and sweat glands.
Epithelioid patterns are formed by accumulations of connective tissue macrophages in response to certain types of injury and infections, as well as by many tumors derived from the epithelium.
Mesenchyme (mesoderm) and Mucous connective tissue in the umbilical cord
The primary function of myoepithelial cells is to contract and help expel secretions from glandular acini into ducts.
Endocrine gland and exocrine gland.
By forming folds at different levels.
Nexus
A mechanical heart valve is an artificial device implanted in the heart to replace a damaged or diseased valve.
The cells can have cilia or microvilli, such as a brush border, or both a cilium and microvilli.
Lumen
Capillary lumen
In the gallbladder and intestine
Zonula occludens (tight junction), Zonula adherens, Macula adherens (Desmosomes)
Secretion
In ductal epithelia engaged in active transport, such as the proximal and distal convoluted tubules of the kidney and ducts of glands.
Because all cells attach to the basement membrane, but not all cells reach the surface.
The cell (cytology).
The abundance of extracellular material produced by its connective tissue cells.
Merocrine secretion involves the release of secretory products through exocytosis without any loss of cellular material.
In special situations, epithelial cells lack a free surface and are called epithelioid tissue. The epithelioid cells are derived from progenitor mesenchymal cells. Epithelioid organization is typical of most endocrine glands, such as interstitial cells of Leydig in the testis, lutein cells of the corpus luteum of the ovary, Islets of Langerhans of the pancreas, parenchyma of the adrenal gland and anterior lobe of the pituitary gland, and epithelio-reticular cells (as stroma) of the thymus.
Embryonic connective tissues, Adult connective tissues (proper), Specialized connective tissues
Seminiferous tubules and cells in inter-tubular spaces.
2/3 of total body fluid
Excretory, secretory, and absorption.
Providing a matrix that connects and binds other tissues and cells in organs, maintaining the frame network of organs (as stroma), and giving metabolic support to cells as the medium for diffusion of nutrients and waste products.
Hemidesmosomes are specialized junctions that link cells to the basal lamina.
Perichondrium
Simple branched tubular gland
Protection, secretion, and absorption.
A nivel de microscopía electrónica (EM), las células epiteliales muestran detalles más finos de los contenidos citoplasmáticos, como organelos y estructuras subcelulares, mientras que a nivel de microscopía óptica (LM), se observan principalmente la forma y el tamaño general de las células, sin tanto detalle interno.
Mostly epithelium or gland
Basal infoldings of the basal plasma membrane.
Simple squamous epithelium, Simple cuboidal epithelium, Simple columnar epithelium, Pseudostratified columnar epithelium
To move mucus and dust.
Dominantly serous secretion.
Nexus
The secretory granules have to be demonstrated by histo- or cytochemistry processes.
Desmosomes
The classification of exocrine glands is based on the morphology of the excretory duct and the secretory portion.
They are classified as either unicellular or multicellular glands.
Basal cells are stem cells that give rise to mature functional (columnar) cells of that epithelium.
On absorptive or secretory surfaces.
Taste buds are sensory organs located on the tongue that allow us to experience tastes such as sweet, salty, sour, and bitter.
Tissue/organ donation
In the urinary bladder, ureters, and part of the urethra
Stratified columnar epithelium can be found in parts of the pharynx, male urethra, and lining some glandular ducts.
The apical surface is the uppermost surface of an epithelial cell that faces the lumen or external environment.
Silver staining is used for reticular fibers.
The middle layer contains connective tissue (dense irregular as submucosa), muscularis as smooth muscle, and nervous tissue (ganglion plexuses).
Cilia are hair-like structures on the apical surface of some epithelial cells that help in movement of substances across the cell surface.
Stem cell transplantation.
Smooth muscle tissue
Follicular type, Plate-like type, Cord-like type
Interstitial fluid
Cardiac muscle tissue
The major organelles and inclusions visible under a light microscope include the nucleus, nucleolus, cytoplasm, and cell membrane.
Secreting glucose into sinusoidal capillaries
Columnar cell
Mammary glands are specialized organs in mammals that produce milk to nourish offspring.
Neurons
In the male excretory ducts such as the epididymis.
In merocrine secretion, cells excrete their substances by exocytosis without any loss of cellular material.
The adrenal cortex and the adrenal medulla.
The recommended sequence of magnifications to view a slide tissue is starting from low magnification: x5, x10, x20, x40 (not x100 with oil).
The Islet of Langerhans is a group of pancreatic cells that produce hormones such as insulin and glucagon.
Basophilic cell nuclei stain blue, while cytoplasm stains pink.
Exocrine and endocrine glands.
Hormones or factors
Epithelial tissue, connective tissue, muscular tissue, and nervous tissue.
Apocrine secretion involves the release of secretory products along with a portion of the cell's cytoplasm.
Tissue fluid mainly consists of water, electrolytes, and small molecules that pass through the capillary walls.
Cytosol, various membrane-bound organelles, inclusions, and cytoskeletal elements.
Myoepithelial cells contract to assist in the expulsion of glandular secretions, facilitating the movement of these secretions into ducts and out of the gland.
0.010 - 0.40 μm.
Taste buds can detect sweet, salty, sour, bitter, and umami tastes.
Brain death from trauma or accident
It consists of both tubular and acinar (or alveolar) secretory portions.
Organelles are visualized in LM with the help of specific staining.
Myoepithelial cells are located between secretory cells and the basement membrane, embracing secretory acini and the beginning of excretory portions.
Surface ectoderm
Absorption
A mucous acinus is composed of mucous cells.
In the respiratory tract as ciliated columnar cells with goblet cells.
Smooth muscle
Tight junctions, Adherens junctions, Desmosomes
Fluid balance
Una glándula multicelular.
Secreting bile into bile ducts
Merocrine secretion
Hemidesmosomes, Basal striations
In small ducts and tubules in glands.
Stratified squamous epithelium consists of multiple layers of cells with the outermost layer being flat and scale-like.
Exocrine glands release their secretions onto the free surface via ducts.
Periósteo e endósteo (tecido conjuntivo denso irregular).
The four basic tissues are epithelial tissue, connective tissue, muscular tissue, and nervous tissue.
Mallory-Azan stain is used to visualize connective tissue.
0.2 - 5 μm, up to 80 μm.
Cytogenic secretion involves the discharge of cells along the excretory portion, found in seminiferous tubules of the testis (releasing sperms).
Modifications can include microvilli, cilia, and tight junctions.
More than 90% of all tumors are of epithelial origin after age 45.
มีเนื้อเยื่อพื้นฐาน 4 ชนิด
Contraction, facilitated by microfilaments actin and myosin.
La función principal de la córnea es refractar la luz que entra en el ojo para ayudar a enfocar la visión.
The outer layer (adventitia) consists of connective tissue, blood and lymphatic vessels, and nervous tissue. If the outer wall is covered with simple squamous epithelium, it is known as serosa.
Stereocilia are long, branched microvilli found on the apical surface of certain epithelial cells, aiding in absorption and sensory functions.
Its ability to stretch and return to its original shape
Inflammation, cell proliferation (stem cell, growth factors), and cell-extracellular matrix interaction.
The primary mechanisms of glandular secretion are merocrine, apocrine, and holocrine.
3D printed bone implant.
The adjacent epithelium.
The future potential includes in situ printing, where tissues or organs are printed directly at the site of damage.
Exocrine glands and endocrine glands.
Cell and Extracellular matrix
Fibrous connective tissue is involved in scar formation.
Dendrites and axon
Urothelium
It encloses the cellular contents and separates them from the external environment.
Pseudostratified columnar epithelium with modified cilia
Absorption, filtration, secretion, and providing little protection against mechanical abrasion.
The inner layer (mucosa) consists of epithelium (as parenchyma or functional tissue) and connective tissue (as loose CT = lamina propria).
The renewal rate in the intestinal epithelium is fast, being replaced every 4 hours to 4 days.
Four basic tissue types: epithelial tissue, connective tissue, muscular tissue, and nervous tissue.
20% of ECF
Endothelial cell
Long, non-motile cilia: proximal third as 9 + 2 axoneme, but distal two-thirds as 9 peripheral single MTs surrounding a central pair of MTs
Mixed exo-endocrine gland.
To provide a barrier between the blood and the rest of the vessel wall, and to regulate the exchange of substances between the bloodstream and surrounding tissues.
Scar formation
มี 2 ประเภท: เยื่อบุผิ���ปกคลุมหรือเยื่อบุผิว และเยื่อบุผิวต่อม
Regeneration
By proliferating and forming new blood vessels from pre-existing ones.
พบในอวัยวะรับความรู้สึกพิเศษ เช่น Rods & Cones ของเรตินา (รับภาพ), Auditory (ได้ยิน), Olfactory (รับกลิ่น) และ Gustatory cells (รับรส)
The terminal web is a network of actin filaments at the base of microvilli that provides structural support and helps maintain cell shape.
La función principal de los bastones es detectar la luz tenue y proporcionar visión en blanco y negro.
Stratified squamous to columnar epithelium with mucus-secreting goblet cells.
In the pancreas, testis, and liver.
Glandular epithelia are specialized for secretion.
Epithelial tissue, connective tissue, muscular tissue, and nervous tissue.
Holocrine secretion involves the release of secretory products along with the entire cell, which disintegrates to release its contents.
Covering epithelium and glandular epithelium.
Epithelial cells are renewed continuously by mitotic activity.
Nucleus and cytoplasm
Cytology, Basic Tissues, Organs, and Systems.
Taste buds are primarily located on the tongue, but they can also be found on the roof of the mouth, the throat, and the esophagus.
General adult connective tissue and Special adult connective tissue
A gland with a branched secretory portion that is acinar (or alveolar) in shape.
Epithelioid organization refers to a tissue structure where cells are arranged in a pattern similar to epithelial cells, often seen in certain types of tumors or granulomas.
Mitotic activity occurs within the basal layer in contact with the basement membrane.
Differentiated carcinoma cells reflect cell-specific morphologic features and behaviors, such as the production of keratins, mucins, and hormones.
In clumps or cords-like or follicles and surrounded by the basement membrane
It gradually shrinks and becomes replaced by fat.
Adipocytes.
Cilia are hair-like structures that help in moving fluids or mucus over the epithelial surface, commonly found in the respiratory tract.
แบ่งออกเป็น 2 ประเภท: ต่อมเอ็กโซครินและต่อมเอ็นโดคริน
Los bastones son más sensibles a la luz tenue.
A prominent scar within the original lesion
The components of tissue include cells and extracellular matrix. Organs are composed of multiple tissues, including epithelial, connective, muscular, and nervous tissues, which work together to perform specific functions.
Severe diarrhea.
Based on the number and shape of surface cells.
Tissue and organ donation involve the removal of tissues or organs from a donor to be transplanted into a recipient, requiring careful matching and consideration of immunological compatibility.
A covering or coat.
A layer.
cell
The basement membrane is stained in PAS reaction and H&E respectively.
APUD cells are sometimes called paracrine glands and stand for amine precursor uptake and decarboxylation.
Apocrine secretion involves the release of a portion of the cell's cytoplasm along with the secretory product.
Branching and shape of both the excretory and secretory portions.
Simple glands have a single or unbranched duct and a secretory portion that can be tubular or acinar (coiled and/or branched).
Scar tissue forms instead of normal tissue because the body prioritizes quick repair over perfect restoration, leading to the formation of fibrous connective tissue.
Adrenaline (epinephrine).
80% of ECF
The parenchyma of the parathyroid gland consists of the functional cells that produce parathyroid hormone (PTH).
Transitional epithelium is found in the conjunctiva.
To allow the urinary organs to expand and stretch
Endocrine glands release their secretions directly into the bloodstream.
It can have microvilli.
Resorcin-fuchsin is used for elastic staining.
Passive transport of fluid, nutrients, or metabolites, secretion, absorption, and reducing friction.
Microvilli are small, finger-like projections that increase the surface area for absorption and are commonly found on the apical surface of epithelial cells in the intestines.
Individual endocrine cells in the epithelial lining of the GI and RS tract
Same blood group with tissue compatibility
Adrenal gland, pituitary gland
Epithelial tissue is classified based on cell shape, number of layers, and apical cell surface differentiations correlated with the function of the epithelium.
Endoderm, Mesoderm, and Ectoderm.
Heart or renal failure increases capillary hydrostatic pressure.
Nutrients are delivered by diffusion as epithelial tissue is avascular.
half
Exocrine glands have both secretory and excretory portions.
Nucleus, Cortex, Grey Matter
Tract or White Matter
chondr-
-some
It underlies or supports the other three basic tissues, both structurally and functionally.
A carcinoma is a malignant tumor of epithelial cell origin.
Holocrine secretion involves the discharge of the whole products, found in sebaceous glands.
Stratified cuboidal and columnar epithelium consists of multiple layers of cells, with the surface layer being either cuboidal or columnar in shape.
Adenocarcinomas are malignant tumors derived from glandular epithelial tissue.
Examples of simple glands include sweat glands, gastric glands, and intestinal glands.
Transitional or uro-epithelium.
The maturation of T-lymphocytes (T-cells).
Simple squamous, simple cuboidal, simple columnar, and pseudostratified columnar.
To accommodate a great degree of stretch and withstand the toxicity of urine.
Fluid connective tissue (blood & lymph), Supporting connective tissue (bone & cartilage), Haematopoietic connective tissue (bone marrow)
The balance of components in these compartments is maintained.
Basal cells are cuboidal, intermediate cells are polygonal, and surface cells are round.
Undifferentiated carcinomas are often difficult to diagnose by morphological analysis alone.
Mast cells are involved in the inflammatory response and play a key role in allergy and anaphylaxis by releasing histamine and other mediators.
The main components of compound salivary glands are the excretory portions and the secretory portions.
Microvilli are supported by a core of actin filaments.
A septum is a wall or partition that separates different sections or lobules within a tissue or organ.
Los bastones y los conos se encuentran en la retina.
Dehydration is a decrease in tissue fluid.
Edema is the clinical condition characterized by an excess accumulation of fluid in the tissues, leading to swelling.
Artifacts in tissue sections are minor structural abnormalities produced during tissue preparation, such as shrinkage of cells or tissue regions, loss of molecules like lipids and glycogen, slight cracks, wrinkles in sections, and shrinkage that may be confused with cellular structures like cytoplasmic granules.
through, across, beyond
Ganglion
Receiving, generating, and transmitting nerve impulses
-clast
Pigments, food storage as lipid droplets, glycogen granules, and lipofuscin pigments.
Interstitial cells are cells that are found in the spaces between the functional cells of a tissue or organ.
In holocrine secretion, the entire cell disintegrates to release its substance, resulting in the loss of the whole cell.
A gland with an unbranched secretory portion that is tubular in shape.
Exocrine glands release their secretions through ducts to the surface of an organ or tissue.
Skeletal, smooth, and cardiac muscle.
Deceased donor and living donor
EM level, LM level, and units in different levels of composition.
GAGs, or glycosaminoglycans, are long unbranched polysaccharides that play a crucial role in maintaining the structural integrity of connective tissue by attracting water and providing resistance to compression.
The primary function of the apical domain in epithelial cells is to facilitate absorption, secretion, and cellular communication.
The cells appear flattened and more squamous-like
Adhesive glycoproteins help in cell adhesion, migration, and maintaining the structure of the extracellular matrix.
La córnea está compuesta principalmente por tejido epitelial y tejido conectivo.
Vascular tissue
La córnea se nutre a través de la difusión de oxígeno y nutrientes desde el humor acuoso y las lágrimas.
The brush border is a dense layer of microvilli on the apical surface of epithelial cells, particularly in the intestines, enhancing absorption.
Movement.
Lymphatic obstruction.
เยื่อบุผิวชนิด B ทำหน้าที่เป็นเยื่อบุผิวต่อม
Schwann Cells, Satellite Cells
Tissue injury and repair involve processes such as inflammation, cell proliferation, and tissue remodeling to restore normal function.
The essential elements of an organ.
Protection, absorption, transport of material at the surface, secretion, excretion, receptors, gliding between surfaces, and gas exchange.
stereo-
Simple cuboidal epithelium with microvilli has small, finger-like projections that increase surface area for absorption, while without microvilli, it does not have these projections.
Transitional epithelium is now classified as pseudostratified epithelium in newer textbooks.
Endocrine glands have only secretory portions and release their secretory products, such as hormones, into the blood and lymph stream.
Endothelial cell
Germinal epithelium of the ovary.
Interstitial of Leydig’s.
It is compatible with a high rate of trans-epithelial transport, especially as endothelium.
Yes, scar tissue can be remodeled over time, but it will never fully regain the properties of the original tissue.
Epithelial tissue.
As a purple haze.
Niches are sites where stem cells are located, restricted at some distance from the transit amplifying and differentiated cells.
Excretory portion (duct) and secretory portion.
Microvilli are small, finger-like projections on the apical surface of epithelial cells that increase surface area for absorption.
Simple and compound, tubular and acinar/alveolar.
The excretory portions of compound salivary glands are lined with stratified cuboidal or stratified columnar epithelium.
ประกอบด้วยเซลล์หลายเหลี่ยมที่มีการเกาะติดกันอย่างแน่นหนาและมีสารระหว่างเซลล์น้อยมาก
A scar that extends beyond the original lesion and continually grows
The outer portion of an organ.
Covering epithelium is classified into squamous, cuboidal, and columnar shapes based on the shapes of surface cells.
Basal cells are specialized for mitotic division.
inside, within
Non-keratinized (moist type) and keratinized (dry type).
เนื้อเยื่อประกอบด้วยเซลล์และสารระหว่างเซลล์ (matrix) ซึ่งอาจมีปริมาณน้อย ไม่มี หรือมีปริมาณมาก
No, scar tissue is not functionally the same as the original tissue; it is less flexible and lacks the specialized functions of the original tissue.
La córnea es la capa transparente y exterior del ojo que cubre el iris, la pupila y la cámara anterior.
Mixed exo-endocrine glands have both exocrine and endocrine functions.
Blood and lymphatic vessels
In the upper anterior part of the chest, behind the sternum.
Mesothelium
The primary function of exocrine glands is to produce and secrete substances such as enzymes, sweat, and saliva.
A lobule is a small, defined section of a tissue or organ, often separated by connective tissue septa.
ระบบประกอบด้วยอวัยวะ ซึ่งส่วนใหญ่เป็นอวัยวะภายในระบบ และมีอวัยวะภายนอกเพียงหนึ่งเดียวคือผิวหนัง
Edema is an increase in tissue fluid.
Scarring
Stereocilia are longer than microvilli and are involved in sensory functions, such as in the inner ear, whereas microvilli primarily increase surface area for absorption.
Tissue is a group of similar cells that perform a specific function. An organ is a structure composed of multiple tissues working together to perform complex functions. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.
By cell adhesion molecules and junctional complexes.
Epithelial cells are anchored to a basal lamina.
The supporting tissue.
Articular surfaces, enamel of the tooth, and the anterior surface of the iris.
Stratified epithelium consists of more than one cell layer.
Derived from the nouns 'oste-' (bone) and '-cyte' (cell).
shape
Neural crest cells
Covering epithelia form the boundary between the external environment and body tissues, cover body surfaces, line lumens of internal organs, line body cavities, and line blood and lymph vessels.
The primary function of stratified columnar epithelium is to provide protection and secretion.
Genetic material (DNA) and it is surrounded by a double membrane called the nuclear envelope.
Lobar ducts are responsible for transporting secretions from lobules to larger ducts.
อวัยวะประกอบด้วยเนื้อเยื่อพื้นฐาน 1 ใน 4 ชนิด (ส่วนใหญ่เป็นเนื้อเยื่อบุ��ิวที่เป็นหน่วยทำงานของอวัยวะ) ร่วมกับเนื้อเยื่อพื้นฐานชนิดอื่นอย่างน้อย 1 ชนิดเพื่อเป็นเนื้อเยื่อสนับสนุน
Relatives or spouse
Endothelium
It surrounds bundles or fascicles of muscle fibers.
Los dos tipos principales de células fotorreceptoras en la retina son los bastones y los conos.
Increased capillary hydrostatic pressure and increased vascular permeability.
Los conos son responsables de la visión en color.
Epithelial cells exhibit distinct polarity.
La función principal de los conos es detectar la luz brillante y proporcionar visión en color.
Most epithelial cells renew continuously by mitosis.
juxtaglomerular cell
Mainly protective and barrier functions.
Common artifacts in tissue sections include slight cracks, wrinkles, and shrinkage of cells or tissue.
liver
eat
Regeneration
Stratified squamous (keratinized and non-keratinized), stratified cuboidal, stratified columnar, and transitional epithelium.
Epimysium, which is dense connective tissue.
A pseudostratified epithelium with plaques on the surface membrane.
Metaplasia is the conversion of one type of differentiated epithelium into another in response to persistent injury.
La córnea es transparente debido a la organización regular de sus fibras de colágeno y la ausencia de vasos sanguíneos.
Venous obstruction increases capillary hydrostatic pressure.
เยื่อบุผิวชนิด A ทำหน้าที่เป็นเยื่อบุผิวปกคลุม
Tubular organs, such as the stomach and intestine, are organized into layers including the mucosa, submucosa, muscularis, and serosa or adventitia.
Pia Mater, Arachnoid Membrane, Dura Mater
Epithelial cells have almost no free intercellular substances.
Endocrine glands do not have an excretory portion and are associated with blood vessels (bl.vv).
inter-
gland
Simple columnar epithelium can be with cilia or without cilia.
Taste buds send signals to the brain through gustatory cells that transmit information via the cranial nerves.
The Periodic acid-Schiff (PAS) stain helps identify minor features in tissues.
The primary function of endocrine glands is to produce and secrete hormones.
Interlobular ducts transport secretions between lobules and larger ducts.
The endomysium is a delicate layer of reticular tissue and extracellular matrix that surrounds each myofiber, similar to the basal lamina.
Excessive fibrous tissue deposition in internal organs after chronic inflammation
Convey away from an organ.
The inner portion of an organ.
Endoneurium, Perineurium, Epineurium
Shrinkage of cells or tissue regions can produce artificial spaces between cells and other tissue components.
A gland that has both exocrine and endocrine functions.
Nerve
-oid
Liver tissue is restored by the stimulated mitotic activity of healthy liver tissue.
Neuro-epithelium is a special type of epithelium found in organs of special senses such as the rods and cones of the retina, auditory epithelium, olfactory epithelium, and gustatory cells.
Intra-lobular ducts are small ducts within a lobule that collect secretions from acini or tubules.
The secretory portions of compound salivary glands are typically lined with simple cuboidal or simple columnar epithelium.
Conveying toward an organ.
Astrocytes, Oligodendrocytes, Ependymal Cells, Microglia
Comprised of an epithelium, lamina propria, and often a muscularis mucosae.
Epithelium is classified into simple epithelium (one cell layer) and stratified epithelium (more than one cell layer).
Simple epithelium consists of a single layer of cells.
A vessel.
derm-
Pseudostratified columnar epithelium appears to be stratified but is actually a single layer of cells. It can have cilia or stereocilia, or be without either.
Solid organs, such as the liver and kidney, have a more complex internal structure with parenchyma (functional tissue) and stroma (supportive tissue).
Lining and covering epithelia, and glandular epithelia.
Neurons and Supporting Cells
Special stains might be needed to recognize the loss of molecules such as lipids and glycogen in tissue sections.
It is important for students to recognize artifacts in tissue sections to avoid confusing them with actual cellular structures and to accurately interpret histological data.
Simple squamous, simple cuboidal, and simple columnar.
By the shape of the upper or surface cells, which are cuboidal or columnar respectively.
