Muscle Contraction 7 Steps

Anatomy and Physiology7 CardsCreated 5 months ago

This deck covers the seven key steps involved in muscle contraction, from the initial action potential to the final muscle contraction.

Step 1

Action potential travels down motor neuron
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Key Terms

Term
Definition
Step 1
Action potential travels down motor neuron
Step 2
Acetylcholine (ACH) released into sarcolemma
Step 3
Action potential on sarcolemma
Step 4
Sodium ions (Na+) rush into muscle cell
Step 5
Calcium (Ca+) released from cisternae
Step 6
Myosin heads attach to actin

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TermDefinition
Step 1
Action potential travels down motor neuron
Step 2
Acetylcholine (ACH) released into sarcolemma
Step 3
Action potential on sarcolemma
Step 4
Sodium ions (Na+) rush into muscle cell
Step 5
Calcium (Ca+) released from cisternae
Step 6
Myosin heads attach to actin
Step 7
Muscle contracts