Question

A deltoid ridge occurs in

• A. Radius
• B. Ulna
• C. Femur
• D. Humerus

Answer 1

The correct option is D Humerus

• The forelimb comprises of humerus, radius, ulna, carpals, metacarpals, and phalanges.
  
• The humerus is the long bone in the upper arm. It is located between the shoulder and the elbow joint.
• The roughly triangular area on the anterolateral (front-side) surface of the middle of the humerus is called as the deltoid ridge. The deltoid muscle is attached to the deltoid ridge. Hence a deltoid ridge occurs in the humerus.
  
• So, the correct answer is 'Humerus'.