Humerus
The humerus attaches proximally to the scapula (shoulderblade) at the humeral head and distally with the radius and ulna (lower-arm bones) at the trochlea and capitulum, respectively.
This drawing of the humerus shows how it attaches proximally to the scapula (shoulderblade) at the humeral head and distally with the radius and ulna (lower-arm bones) at the trochlea and capitulum, respectively.
Source
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"HumerusFront.png."
https://commons.wikimedia.org/wiki/File:HumerusFront.png
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