The following are required steps in the sliding filament theory of muscle contraction:

Nerve impulse reaches the muscle.
Action potential travels down T-tubules.
Calcium binds to troponin.
Tropomyosin moves.
What would be the correct order of the steps?
4, 3, 2, 1
1, 2, 3, 4
3, 1, 2, 4
3, 2, 1, 4 ( My choice)

Question

The following are required steps in the sliding filament theory of muscle contraction:

Nerve impulse reaches the muscle.
Action potential travels down T-tubules.
Calcium binds to troponin.
Tropomyosin moves.
What would be the correct order of the steps?
 4, 3, 2, 1
 1, 2, 3, 4
 3, 1, 2, 4
 3, 2, 1, 4 ( My choice)

afrodiddle · Answer

sorry, but I am not strong in science. I'll try to research real quick.

afrodiddle · Answer

I found this: http://openstudy.com/updates/5566410de4b00364ba68c605

osprey · Answer

I'd go for 1234 GUESSING that the nerve impulses "tell" the muscle to do it's bit. http://perendis.webs.com

yoo59 · Answer

@paki

psirockin2 · Answer

Um... logic dictates 1, 2, 3, 4

word2 · Answer

is their something that i'm missing ? i don't get it