Smooth Muscle Flashcards
1
Q
smooth muscle cell characteristics
A
spindle-shaped fibers with a single nucleus
2
Q
cell parts
A
surrounded by sarcolemma, intermediate filaments within, dense body at junctions of intermediate filaments
3
Q
visceral smooth muscle tissue
A
single unit, neatly lined up cells
4
Q
multiunit smooth muscle tissue
A
cells cross over each other
5
Q
composed of
A
not sarcomeres
6
Q
SR?
A
scant SR for Ca2+ storage
7
Q
T tubules?
A
no T tubules
8
Q
gap junctions?
A
gap junctions between cells in visceral organs
9
Q
autorhythmicity?
A
yes, involuntary nervous control
10
Q
regulated by
A
acetylcholine, norepinephrine
11
Q
regeneration?
A
considerable regeneration by spericytes
