ANATOMY AND PHYSIOLOGY MUSCLE CONTRACTION CYCLE - LABEL THE ORDER OF SEQUENCES A-J?

Question

Ok here's the question. It wants to know the correct sequence A-J of the muscle contraction cycle. I am having trouble with a few of the steps. Any help on this will be greatly appreciated!! I will give the best answer. Thanks in advanced!

Place the following in the correct sequence.

A) myosin head resets position

B) sarcomere shortens

C) troponin bids Ca++ and reconforms, displacing tropomyosin

D) motor potential travels down motor neuron

E) excitation runs down T tubule to SR

F) SR releases Ca++ onto sarcomere

G) motor neuron releases ACh into NMJ

H) powerstroke drives sliding filaments

I) active pumps drive Ca++ to SR

J) myosin head hydrolyzes ATP, forms crossbridge

Answer 1

Favorite Answer

DGEFCJHBAI

Source(s): some pts r missing bt i tried my best, hope its correct.

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Answer 2

If you're doing a powerpoint presentation, I'd start by outlining everything in the beginning; maybe like... I. Intro - Muscle contractions [type of muscle; eg. cardiac?, smooth?, skeletal?] A. Location of muscle - purpose B. Nerves that innervate the muscle type C. 2 Processes - Signal transduction and Force Generation II. Signal Transduction - A. Neurons - Action potentials, IPSP's, EPSP's, etc, B. Neuromuscular Junction - synaptic processes, NT's/receptors, etc C. Muscle cells- post-synaptic signalling, calcium release, etc III. Force - contraction A. Structures and proteins involved B. etc. etc. Hope this helps somewhat, I'm out of steam

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