a&p quiz 4 Flashcards
1
Q
actin
A
contains myosin binding sites
2
Q
tropomyosin
A
covers/uncovers themyosin binding sites on action
3
Q
z-line
A
define 1 sacromere from the next
4
Q
troponin
A
binds (ca2+) calcium when present in the sacroplasm
5
Q
titan
A
elasticity+extensibility
6
Q
m-line
A
myomesin
7
Q
nebulin
A
anchors/aligns the thin filament to the z-line
8
Q
myomesin
A
causes the filaments to slide
9
Q
contractility
A
dystrophin
10
Q
THICK filament
A
composed of myosin
11
Q
what is THIN filements composed of
A
- actin
- tropomyosin
- troponin
12
Q
sacomere fxn
A
level at which contractions occur.