Muscle fiber types Flashcards
1
Q
slow twitch–type1
A
contract more slowly and smaller in diameter
have better blood supply, more mitochondira and are more resistant to fatigue
have large amount of myoglobin
2
Q
slow twitch meat color
A
dark–due to myoglobin
3
Q
slow twitch mainly found in
A
postural muscles
more in lower limbs verse uppers
4
Q
fast twitch type 2
A
rapidly react
contain myosin heads that can break down ATP faster
become fatigued faster
less blood supply and less mitochondria
5
Q
fast twitch meat color
A
white
6
Q
myoglobin
A
binds to 02 and serves as an 02 reservoir
enhances muscles ability to preform for a long time
7
Q
type 1 main source of ATP
A
aerobic respiration
8
Q
type 2 locations
A
lower limbs of sprinters and upper limbs of most people
9
Q
type 2 source of ATP
A
glycotic and oxidative
