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12 terms

CH 4: Epithelium Function and Example Locations

Mostly from figure 4.3 (pages 72-75) Human Anatomy (5th ed.) Marrieb, Mallatt, Wilhelm
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Protection, Absorption, Sensation, Secretion, Ion Transport, Filtration of Fluids, Slippery Surfaces
These are some of the main functions of Epithelia (PASSIFS)
Protection
All stratified epithelium (squamous, cuboidal, columnar, transitional) serve this purpose
Simple Squamous
____ ____ Epithelium:This single layer tissue type is most often involved in diffusion and filtration. Example Location: Kidney glomeruli, air sacs of the lungs, etc.
Simple Squamous
____ ____ Epithelium: This single layer tissue is responsible for secretion in serous membranes
Simple Cuboidal, Simple Columnar
____ ____ Epithelium; ____ ____ Epithelium: These two single layer tissues are thin enough to allow a large number of molecules to pass through, yet thick enough to house cellular machinery for molecular transport - functioning in the active movement of molecules, absorption, secretion, and ion transport
Simple Cuboidal
____ ____ Epithelium: An example of this single layer tissue can be found in kidney tubules.
Simple Columnar
____ ____ Epithelium: An example of this single layer tissue can be found in the digestive tract - tissue in this tract tend to be nonciliated.
Pseudostratified Columnar
____ ____ Epithelium: This single layer tissue is involved with mucus secretion and propulsion of mucus by ciliary action in the trachea (wind-pipe).
Stratified Squamous, Epidermis
____ ____ Epithelium: An example of this multi-layer tissue is found in the ____, where the apical cells are fully keratinized (and are dead and dry).
Stratified Cuboidal
____ ____ Epithelium: An example of this multi-layer tissue is found in the largest ducts of the salivary glands (oral region).
Stratified Columnar, Urethra
____ ____ Epithelium: An example of this multi-layer tissue is found in the male ____ (genital region). This tissue is rare in the body.
Transitional Epithelium, Urinary
____ ____: Among other functions, this multi-layer tissue stretches to accomodate distension of _____ structures.