File:Human arm bones diagram.svg

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Summary[edit]

Summary
Description	The humerus is the (upper) arm bone. It joins with the scapula above at the shoulder joint (or glenohumeral joint) and with the ulna and radius below at the elbow joint. Notice: When the arm is spun so that the thumb point to the outside of the body, meaning the palm of the hand looks forward then it is said the hand is supinated. But when the thumb remains in the inside and the palm looks backwards then it is said that the hand is pronated. In this diagram, one hand is pronated and the other supinated in order to show how the ulna and the radius cross while doing this movement.
Source	Wikimedia Commons file page
Author	LadyofHats Mariana Ruiz Villarreal
Permission	See original Commons license details.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	03:31, 5 June 2026		512 × 443 (397 KB)	Maintenance script (talk \| contribs)	== Summary == Importing file

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