Wondering what the deep flexors of the forearm are all about? Begin your learning with this anatomy tutorial on the pronator quadratus muscle! Feeling confident? Try this quiz to see how your knowledge measures up: https://khub.me/z7gf7'>https://khub.me/z7gf7

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The pronator quadratus muscle is one of the three deep flexors of the forearm, lying at the ventral forearm. They run under the flexor digitorum superficialis, close the the radius and ulna. For this reason, they are difficult to palpate! The pronator quadratus arises from the distal end of the ulna on the anterior surface and extends horizontally to the radius, attaching at the anterior margin at the distal quarter of the radius. This gives the muscle a squareshaped appearance.

The pronator quadratus is the deepest muscle in the anterior forearm. The median nerve serves as the innervation for the pronator quadratus (C8Th1).

In this video, we teach you about:

0:09 Definition and location of the pronator quadratus
0:28 Pronator quadratus muscle origin
0:37 Pronator quadratus muscle insertion
0:51 Innervation of the pronator quadratus muscle
1:10 Function of the pronator quadratus muscle
1:23 How to remember the pronator quadratus muscle

Want to test your knowledge on the pronator quadratus? Take this quiz: https://khub.me/z7gf7'>https://khub.me/z7gf7

Read more on the deep flexors of the forearm (including the pronator quadratus!) in this detailed article: https://khub.me/oarps

For more engaging video tutorials, interactive quizzes, articles and an atlas of Human anatomy and histology, go to https://khub.me/7jvjy!