Muscle contraction occurs when muscle fibers get shorter.
Contraction of the muscle straightens the leg.
The leg straightens when muscle fibers get shorter.
What happens to your leg when muscle fibers shorten?
Options:
(A) they bend
(B) It decreases
(C) It straightens
(D) permineralization
(E) It expands
(F) Damages them
(G) Localized damage
(H) Dehydration