Multiple choice

Sigmoid notch is present in

  1. femur

  2. radius ulna

  3. tibia fibula

  4. humerus

  5. -

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sigmoid notch (also known as the trochlear notch) is a large depression in the ulna bone that articulates with the humerus. It is a defining feature of the ulna.