Physiology Review Flashcards
1
Q
During a surgery, put needs drug that blocks the ryanodine receptor, what event was most likely associated with the need for this treatment?
A
Skeletal muscle contractions in the absence of alpha motoneural activity
2
Q
What is the energy from ATP used for in skeletal muscle?
A
ATP—-ADP and then the muscle head goes back to starting position
3
Q
What is the result from opening of the ryanodine receptor?
A
Calcium rushes into the cell from the sarcoplasmic reticulum… Muscles contract
4
Q
What does dystrophin do?
A
It anchors the thin filament to the sarcolemma
- this kids muscles are atrophying because they can’t do work son
- mechanism of damage is destruction of the membrane when contraction happens
