Muscles fatigue is caused by ______

BIOLOGY

POST UTME OAU

A) Accumulation of ethanol in the muscle cells
B) Accumulation of methanol in the muscles cells C) Accumulation of lactic acid in the muscle cells
C) Accumulation of lactic acid in the muscle cells
D) Accumulation of pyruvic acid in the muscle

Correct Answer: C) Accumulation of lactic acid in the muscle cells

Explanation

Without any iota of doubt the answer is accumulation of lactic acid because it occur in the muscle after a strenous exercise and this cause oxygen to be hinder instead a large amount of acid produce which cause muscle cramp

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