Question

question 21
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which of following bones is specifically part of the appendicular skeleton?
ribs
ulna
sternum
vertebrae
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Explanation:

The appendicular skeleton consists of the bones of the limbs and the girdles (pectoral and pelvic). The ulna is a bone in the forearm (part of the upper limb), so it is part of the appendicular skeleton. The ribs, sternum, and vertebrae are part of the axial skeleton (which includes the skull, vertebral column, and thoracic cage).

Answer:

Ulna