The discoloration and swelling of a muscle strain is due to
A) excess myofibrils.
B) separated tendons.
C) severed nerves.
D) ruptured blood vessels.
Correct Answer:
Verified
Q1: Binding sites on the surface of actin
Q2: The striated appearance of skeletal muscle fibers
Q5: Myofibrils are composed primarily of
A)actin and myosin.
B)perimysium
Q7: Functions of muscles include
A) heartbeat.
B) muscle tone.
C)
Q9: The enzyme acetylecholinesterase causes acetylcholine to
A)bind to
Q16: Neurotransmitters are stored in vesicles in
A)myofibrils.
B)motor units.
C)motor
Q17: The outermost layer of connective tissue surrounding
Q26: Athletes usually experience muscle fatigue less quickly
Q27: At a neuromuscular junction, the muscle fiber
Q31: The toxin that causes botulism
A)prevents release of
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