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Anatomy Chapter 3
Anatomy Chapter 3
15
Anatomy
Undergraduate 1
02/12/2012

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Cards

Term
what are the important characteristics of epithelial tissue?
Definition

1. high cellularity

2. all epithelial is avascular (no direction blood supply)

3. can regenerate fairly quickly

Term
what are the functions of epithelial tissue?
Definition

1. provide physical protection

2. provide sensation

3. control permeability

Term
simple eithelium
Definition
  • one layer of cells on the basal lamina
  • allows for diffusion
  • lining of internal compartments and passageways; such as surfaces of the lungs
Term
stratified epithelium
Definition

several layers of cells on the basal lamina

found in areas subjected to mechanical and chemical stress

Term
squamous epithelia
Definition
  • thin falt cells on the exposued surface
  • found in areas where a slick surface reduces friction and a thin lining is needed to allow gas exchange
  • 1. the lining of the lungs surface
  • 2. serous membranes of the ventral body cavitiy called Mesothelium; Pleura- layer around lungs, pericaridum- layer around heart, peritoneum-layer around stomach
  • 3. endothelium- linng of heart and blood vessels
Term
what are the different types of mesothelium and where are they found?
Definition

pleura- layer around the lungs

pericardium-layer around the heart

peritoneum-layer around the stomach

Term
endothelium
Definition
lining around the heart and blood vessels
Term
stratified epithelium
Definition

found in areas most subject to mechanical and physical stress

the surface of the skin, linings of mouth, throat, esophagus, rectum, vagina, anus

Term
simple cuboid epithelia
Definition

provide limited protection

have great absorptive and secretory capabilities

Locations:kindney tubules, pancreas, salivary glands, and thyroid follicles

Term
stretified cuboid epithelium
Definition
rare epithelia, usually found lining the largest ducts of a gland
Term
transitional epithelia
Definition

stretches and changes shape due to lumen (open space) they surround expanding

Locations; renal pelvis, ureters, and urinary bladder

Term
simple columnar epithlium
Definition
provides good protection with excellent absorptive capacites  
Term
pseudostratified columnar epithelium
Definition

(CILIATED)many cell tpyes exist (looks like columnar)

Locations: upper respiratory passages and the male reproductive tract

Term
stratified columnar epithelium
Definition
rare epithelia found incertain areas of the throat, urethra, anus, and some excretory ducts
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