First metacarpal bone

Bones · Latin: Os primum metarcapi

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METACARPAL BONES

In human anatomy, the metacarpal bones or metacarpus, form the intermediate part of the skeletal hand located between the phalanges of the fingers and the carpal bones of the wrist which forms the connection to the forearm.

The metacarpal bones are analogous to the metatarsal bones in the foot.

Definition from Wikipedia, CC BY-SA 4.0.