Term
| three major functions of epithelium |
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Definition
serve as selective barriers
release products produced by cells onto their free surfaces
protection against abrasive influences of the environment |
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Term
| functions of the basement membranes of epithelial cells |
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Definition
surface for the epithelia to migrate
restricts the passage of large molecules
helps filter the blood |
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Term
| first layer of the basement membrane |
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Definition
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Term
| the basal lamina is closer to what |
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Definition
| it is closer to and secreted by the epithelium |
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Term
| proteins that belong to the basal lamina |
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Definition
| lamin, collagen, glycoproteins, glycolipids belong to what |
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Term
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Definition
| adhere to integrins in hemidesmosomes |
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Term
| the second layer of epithelial cells |
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Definition
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Term
| reticular lamina contains what |
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Definition
| proteins like collagen produced by ct fibrosis belong to what |
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Term
| increased production of collagen and laminin leads to what |
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Definition
| basement membranes can become markedly thicker |
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Term
| what does diabetes mellitus do |
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Definition
| causes the basement membranes of capillaries in eyes and kidneys the thicken, leads to blindness and kidney failure |
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Term
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Definition
collection of epithelial cells scared off the apical layer of a tissue
used to examine the epithelial cells of the vagina and cervix of the uterus |
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Term
| epithelium's functions and properties |
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Definition
numerous cell junctions securely attach neighboring cells
avascular
high capacity for cell division
are used for protection, diffusion, absorption, secretion, ion transport, filtration |
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Term
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Definition
| this arrangement reflects their location and function |
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Term
| simple (unilaminar) epithelium does what |
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Definition
| osmosis, diffusion, filtration, secretion, or absorption |
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Term
| pseudostratified epithelium |
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Definition
| cells may contain cilia or goblet cells(secrete mucus) |
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Term
| stratified multilaminar epithelium |
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Definition
| protection from wear and tear |
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Term
| squamous shaped epithelium |
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Definition
| thin, allows for rapid passage of substances (filtration and diffusion) |
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Term
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Definition
| cube-shaped, may have microvilli at apical surfaces (secretion or absorption) |
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Term
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Definition
| taller than it is wide protects the underlying tissue, can have cilia and microvilli at the apical surface |
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Term
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Definition
| can hcange shape from squamous to cuboidal, in the back and urinary bladder |
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Term
| simple squamous epithelium location and function |
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Definition
a single layer of flat cells that resemble a tiled floor when seen from an apical surface
can be located in the cardiovascular and lymphatic system
functions are to filter and diffuse and secrete |
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Term
simple cuboidal epithelium
location
function
description |
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Definition
single layer of cube-shaped cells, round, centrally located in nucleus. the shape is seen when viewed from the side, and the cells are strictly cubed shaped
located in the surface of the ovary, lines the anterior surface of the capsule of the lens of eye, kidney, thyroid, and pancreas
functioned to absorb and secrete |
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Term
nonciliated simple columnar epithelium description location and function
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Definition
a single layer of nonciliated column-like cells with oval nuclei near the base of cells
located in the gastrointestinal tract, ducts, and gallbladder |
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Term
ciliated simple columnar epithelium
location
Description
function
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Definition
a single layer of cilated column-like cells with oval nuclei near the base of cells
location: lines some bronchioles, uterine (fallopian tubes) uterus, paranasal sinuses, the central canal of the spinal cord, and ventricles of the brain
coughed and spit out things |
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Term
| Pseudostratified Columnar Epithelium |
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Definition
located in lines of the airway and upper respiratory tract, urethra (male) glands
secretes mucus and traps particles, then eliminates mucus from body,
absorption and protection |
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Term
| types of stratified epithelial tissue |
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Definition
stratified squamous
stratified cuboidal
stratified columnar
transitional |
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Term
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Definition
synthesized on rough ER
packaged by the golgi complex
released via exocytosiis
most endocrine glands |
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Term
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Definition
accumulates secretory products
pinches off to release secretions
remaining cell repairs itself
skin sweat (apocrine) |
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Term
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Definition
secretion accumulates and cell ruptures
becomes sebaceous glands |
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Term
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Definition
the most diverse and abundant tissue in the body
has fibroblasts, macrophages, plasma cells, mast cells, adipocytes, and white blood cells
mature ct is loose and dense |
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Term
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Definition
binds together and strengthens other body tissue
protects and insulates organs
compartmentalization structures
major transport system (blood) |
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Term
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Definition
| material between cells, consists of protein fibers and ground substance |
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Term
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Definition
| this is separated by large amounts of extracellular matrix including fibroblasts |
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Term
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Definition
| these secrete protein fibers and components of ECM |
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Term
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Definition
| these cells secrete antibodies |
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Term
| GAGs (Glycosaminoglycans) |
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Definition
| complex combo of polysaccharides trap water |
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Term
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Definition
| core of protein that GAGs project from |
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Term
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Definition
| viscous, slippery substance that builds cells and lubricates joints and maintains shape of eyeballs |
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Term
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Definition
| breaks down hyaluronic acid |
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Term
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Definition
body's most abundant protein
found in most connective tissue
strong and flexible. can resist force |
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