1.) What is the importance of acetylcholinesterase in theneuromuscular junction?
A. it breaks down acetylcholine immediately after theneurotransmitter signals a contraction
B. it breaks down acetylcholine to signal the muscle fiber toextend
C. it ensures that multiple twitches are produced from asingle stimulation
D. it prevents stimulation of muscle fibers
2.) In a sarcomere, the thin filaments are ______.
A. composed of slow oxidative fibers
B. the central part of an A band
C. the portion of a sarcomere that creates the dark-stainingportions of the striations
D. the region made of myosin filaments
E. the region where calcium ions bind
3.) Rhabdomyolysis is ______.
A. an inherited sex-linked recessive disorder of muscleweakness leading to death
B. a mysterious chronic pain syndrome of unknown cause thatresults in fatigue
C. a condition in which myoglobin pours crushed muscle tissueinto the bloodstream, causing renal failure
D. a common pain syndrome by tightened bands of musclefiber
