The human arm has how many bones?

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None of the above

answer is A.

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Detailed Solution

Concept: Human arms have three bones that are the humerus, radius, and ulna. The humerus is the upper arm. Radius and ulna are forearms.
The upper extremity or arm is a functional unit of the upper body. It includes three sections, the upper arm, forearm, and the hand. It extends from the shoulder joint to the fingers and has 30 bones. It also consists of so many nerves, blood vessels like arteries and veins, and muscles.In the palm, there are a total number of 27 bones present. The wrist has carpels; those are 8,5 metacarpals and 14 phalanges. So, the total number of bones is 30.
Hence, option 1 is the correct answer.

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