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NEET2006ZoologyLocomotion and MovementActual

Sigmoid notch is formed by :

Options

  1. Acavity formed by humerus
  2. Bcavity formed by radius-ulna
  3. Ccavity formed by tibia-fibula
  4. Dcavity formed by femur

Correct answer

B. cavity formed by radius-ulna

Step-by-step solution

Radius and ulna are the bones of the forearm which are closely held together. The ulna is the long bone and bears a deep sigmoid notch for articulation with the trochlea of the humerus.

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