The carrying angle of the elbow is formed between which two axes and is larger in which sex?
- A Long axis of humerus and long axis of forearm; larger in females (~15–20°) ✓
- B Long axis of humerus and axis of wrist; larger in males (~5°)
- C Axis of forearm and midline of body; equal in both sexes
- D Long axis of forearm and axis of shoulder; larger in males (~15°)
Correct answer: A. Long axis of humerus and long axis of forearm; larger in females (~15–20°)
Explanation
The carrying angle is the valgus angle at the fully extended, supinated elbow, formed between the long axis of the humerus and the long axis of the forearm. It is normally 5–10° in males and 10–15° (up to 20°) in females, allowing the forearm to clear the hips when carrying loads. An increased angle (cubitus valgus) can cause tardy ulnar nerve palsy. Cubitus varus (decreased angle) is the most common deformity after supracondylar fracture in children.
Reference: BD Chaurasia's Human Anatomy, 8th ed.
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Written and medically reviewed by the StethoPrep medical team.