SmarterEd

Aussie Maths & Science Teachers: Save your time with SmarterEd

HMS, BM EQ-Bank 23 MC

During a biceps curl, what occurs at the elbow joint?

  1. The biceps contracts concentrically as the primary agonist
  2. The triceps contracts concentrically as the primary agonist
  3. The biceps and triceps contract simultaneously
  4. The triceps relaxes while the biceps stabilises
Show Answers Only

\(A\)

Show Worked Solution
  • A is correct: The biceps contracts concentrically as the agonist, producing elbow flexion to lift the weight.

Other options:

  • B is incorrect: The triceps extends the elbow, not flexes it.
  • C is incorrect: Reciprocal inhibition prevents simultaneous contraction
  • D is incorrect: The biceps contracts, not stabilises