What Are the Correct Steps of Muscle Contraction Starting with ACh

question 28

Multiple Choice

What are the correct steps of muscle contraction starting with ACh?
A. ACh diffuses across the synaptic cleft
B. The sarcolemma generates an impulse that moves down the T tubules into the sarcoplasmic reticulum
C. ACh binds to receptors in the sarcolemma
D. The sarcomere contraction produces a myofibril contraction
E. Calcium is released causing the sarcomere contraction

• A) a - c - b - e - d
• B) a - b - c -e - d
• C) d - a - b - e - c
• D) c - e - d - a - b

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