The fluid in the sarcoplasmic reticulum contains a high concentration of ________ ions, which are released when an action potential stimulates it.
A) calcium
B) potassium
C) sodium
D) iron
E) phosphorus
Correct Answer:
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Q16: Skeletal muscle appears striped because of:
A)T tubules.
B)accessory
Q17: The hard exoskeleton of a crustacean:
A)encases, individually,
Q18: The myofibrils of skeletal muscle are organized
Q19: Skeletal muscle:
A)makes up the heart.
B)squeezes food through
Q20: An exoskeleton is found in _; an
Q22: Which of the following is TRUE of
Q23: Smooth muscle in the human body includes
Q24: What would happen to a person who
Q25: _ is part of the thick filaments;
Q26: A muscle fiber generates maximum contractile force
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