Biology

Which of the following statements is true about movement of the forearm? In

Which of the following statements is true about movement of the forearm? In

  • A.
    bending the arm, the biceps relax and the triceps contract
  • B.
    bending the arm, the biceps contract and the triceps relax
  • C.
    straightening the arm the biceps contract and the triceps relax
  • D.
    straightening the arm, both biceps and triceps contract
Correct Answer: Option B
Explanation

To bend the arm, the biceps contracts and pulls on the radius. Simultaneously, the triceps relaxes.