What happens to a muscle during an isometric contraction?
A) It produces more calcium.
B) It lengthens.
C) It shortens.
D) It is prevented from shortening.
E) Sarcomeres are destroyed.
Correct Answer:
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Q5: Muscle tension is produced internally within the
Q6: Approximately what percentage of body weight does
Q7: How many skeletal muscles are there in
Q8: How many thin filaments are on each
Q9: During muscle contraction,what becomes smaller?
A)H zone
B)thin filaments
C)the
Q11: What molecules form the thick filaments within
Q12: What are the three main muscle types?
A)skeletal,rough,and
Q13: One motor neuron,plus all the muscle fibers
Q14: How long does a single action potential
Q15: What happens when two or more overlapping
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