Dorsal interossei muscles of the Hand - Human Anatomy | Kenhub Kenhub - Learn Human Anatomy

Check out this video on the dorsal interossei muscles of the hand, including their origin, insertion, function and innervation. Take a closer look here in our atlas: https://khub.me/qzu11

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The dorsal interossei muscles of the hand are four short muscles of the metacarpus. Each of them is attached to the adjacent sides of two metacarpal bones, e.g. the first one between thumb and index fingers, the second between index and middle fingers, etc. Distally, their tendons insert at the dorsal aponeurosis and the base of the proximal phalanx of the second to fourth fingers.

The innervation of all dorsal interossei is carried by the deep branch of the ulnar nerve (C8-Th1).

0:17 Location of the dorsal interossei muscles
1:06 Origin of the dorsal interossei muscles
2:16 Insertion of the dorsal interossei muscles
2:56 Innervation of the dorsal interossei muscles
3:07 Function of the dorsal interossei muscles

Want to test your knowledge on all the muscles of the hand? Take this quiz:
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Read more on the dorsal interossei muscles of the hand, including notes on related clinical disorders here:
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Dorsal interossei muscles of the Hand - Human Anatomy | Kenhub
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Education	Upload TimePublished on 28 Jun 2015