Skeletal Muscle Mechanics Flashcards

1
Q

What is the main difference between smooth, cardiac and skeletal muscle?

A
  • Skeletal muscle is fast (high ATPase activity)
  • each fiber innervated
  • all Ca come from SR

*extracellular Ca participate in smooth and cardiac (have internally store too)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What protein bind calcium to mediate contraction in the smooth muscle?

A

Calmodulin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How is the sarcoplasmic reticulum controlled in the smooth muscle?

A

Second messengers

*lack T tubules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly