What is thcontraction of all of thfibers in a motor unit called?
A) muscle twitch.
B) spasm.
C) cramp.
D) strain.
E) sprain.
Correct Answer:
Verified
Q52: Thsarcomeris shorteneduring musclcontraction because
A)the actin filaments shorten
Q53: What pathway converts pyruvates into lactate?
A)fermentation
B)anaerobic respiration
C)aerobic
Q54: Musclforcwill increasif
A)many fibers are stimulated at the
Q55: What is thmechanical forcexerteby a musclon an
Q56: During exercise, which pathway produces thmost energy?
A)fermentation
B)anaerobic
Q58: OncthstoreATP is consumed, what substancwill muscles turn
Q59: Which musclgroup is controlleby thgreatest number of
Q60: Strength training does which of thfollowing?
A)increases the
Q61: What diseasleads to a progressivmusclweakening?
A)osteoporosis
B)Parkinson's
C)rheumatoid arthritis
D)muscular dystrophy
E)osteoarthritis
Q62: Which chromosomcontains thmutation for muscular dystrophy?
A)Y chromosome
B)chromosome
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