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Anatomy and Physiology 1 (PBSC) Questions with Correct Answers
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Anatomy and Physiology 1 (PBSC)
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Anatomy and Physiology 1 (PBSC)Four basic tissue types - answer epithelial, connective, muscle, nervous
divisions of epithelial tissue - answer epithelia and glands
Epithelia - answer Avascular layers(poor circulation)
lines internal organs and passageways
Glands - answer secretory cells
Two types: Exocrine and Endocrine
Functions of epithelial tissue - answer provide physical protection, control permeability,
provide sensation, produce specialized secretions
3 basic shapes of epithelial cells - answer squamous, cuboidal, columnar
Squamous - answer thin, flat
cuboidal - answer cube shaped
columnar - answer taller than they are wide
Epithelial cell layers - answer Simple(one layer) and stratified(multiple layers)
Epithelia lack... - answer blood vessels
Types of intercellular connection - answer tight, occluding, junction
Gap junction
Desmosomes
Tight junctions - answer Membranes of neighboring cells are pressed together,
preventing leakage of extracellular fluid. Found in intestinal tract.
Gap junction - answer Connexons connect them. Coordinate function.
Found on cardiac muscle and smooth muscle to coordinate contraction.
Desmosomes - answer provide firm attachments by interlocking adjacent cells'
cytoskeleton.
Opposing plasma membranes locked together by CAMs(cell adhesion molecules).
Very strong, found in superficial layer of skin
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