Contraction of myofibrils within a muscle fiber begins when
A) sodium enters the muscle fiber
B) acetylcholine binds to ligand gates
C) calcium is released from the sarcoplasmic reticulum
D) an action potential travels t-tubules
E) calcium is moved into the sarcoplasmic reticulum
Correct Answer:
Verified
Q2: Which protein is used to reinforce the
Q3: After the fusion of myoblasts,the muscle fiber
Q4: Which functions as a motor protein in
Q5: For crossbridges to occur,what events must happen?
Q6: Which property of muscle gives it the
Q8: Which correctly lists the sequence of structures
Q9: Compare and contrast the structural characteristics of
Q10: Which regions of the sarcomere contain thick
Q11: Which characteristics describe both skeletal and cardiac
Q12: Which region of a sarcomere contain thin
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