Question

multiple choice question
a build up of lactic acid and lowered levels of atp and acetylcholine can cause muscle:
paralysis
cramps
spasms
fatigue

Explanation:

Lactic - acid build - up occurs during anaerobic respiration in muscles. Low ATP affects muscle contraction ability and reduced acetylcholine impacts nerve - muscle communication. Muscle fatigue is a common result of these factors.

Answer:

D. fatigue