Post-UTME Biology 2018 Objective — Question 4
Question 4 of 20 from the Post-UTME Screening (Post-UTME) Biology 2018 Objective paper, with the correct answer and a full explanation.
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When the forearm is raised, which muscle contracts in the process?
- A. Cardiac muscle
- B. BicepsCorrect
- C. Triceps
- D. Involuntary muscle
Explanation
The biceps muscle contracts to flex the elbow and raise the forearm, while the triceps (its antagonist) relaxes.
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