Muscles Flashcards
1
Q
flexor
A
brings bones closer together
2
Q
extensor
A
moves bones away from each other
3
Q
myofibrils
A
consist of sarcomeres
4
Q
sarcomeres
A
contractile units that contain actin and myosin
5
Q
I-band
A
actin only
6
Q
A-band
A
outer edge, actin and myosin overlap
7
Q
H zone
A
myosin only
8
Q
M line
A
myosin linked with accesory proteins
9
Q
nebulin
A
helps align actin and is a string
10
Q
titin
A
provides elasticity and stabilizes myosin
11
Q
tropomyosin
A
strings attached to the outer part of actin proteins and connects them
12
Q
troponin
A
attached to tropomyosin and form binding site for calcium
13
Q
sarcolemma
A
muscle membrane
14
Q
t-tubules
A
dents in the sarcolemma
15
Q
aerobic respiration
A
slow, oxygen required, large amount of energy obtained
16
Q
anaerobic glycolysis
A
quick, no oxygen required, small amount of energy, produces lactate
