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Left humerus

Humerus sinister · Levá kost pažní

Skeleton

Looks like

The upper arm bone: a long bone from the rounded head in the shoulder socket to the hinge surfaces at the elbow.

What it does

Transmits force between shoulder and elbow and anchors the muscles that lift, bend and rotate the arm.

Keeping it well

Neck fractures follow falls in older people; mid-shaft breaks can injure the radial nerve and cause wrist drop.

Related conditions