Caffeine enhances skeletal muscle contraction by activating the motor cortex and increasing the release of calcium into muscle fibers, leading to increased force of muscle contractions. It does not lower fatty acid levels in blood, increase muscle glycogen deposits, or reduce urine production (it is actually a diuretic and can increase urine production).

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Caffeine

Question 82

Multiple Choice

Caffeine

A) lowers fatty acid levels in blood.
B) enhances skeletal muscle contraction.
C) increases muscle glycogen deposits.
D) is a depressant drug that reduces urine production.

Correct Answer: