muscle fiber + contraction basics Flashcards
1
Q
RED, dark muscle color: ↑ mitochondria, myoglobin
↑ oxidative phosphorylation → sustained contraction
called slow twitch
A
type 1 muscle
2
Q
examples of type 1 muscle
A
calf: soleus
abdominal muscles
3
Q
↓ red (white) → ↓ mito + myoglobin
anaerobic glycolysis
called fast twitch
A
type 2 muscle
4
Q
example of type 2 muscle
A
weight training hypertrophies fast twitch muscles
pectoralis major m.