Biceps Brachii Muscle - Origins & Actions - Human Anatomy | Kenhub

This video teaches the origins, insertion, innervation and actions of the biceps brachii muscle - the strongest forearm supinator. Quiz yourself on the muscles of the arm: https://khub.me/qa9sp

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The biceps brachii muscle (commonly called biceps, or "bi's" for all you weight lifters out there) is a large, thick muscle of the upper arm and it is the most powerful forearm supinator. It consists of two heads: The short head and long head of biceps.

The surface anatomy of the anterior side of the upper arm is essentially formed by the biceps. While both its origin tendons are covered by the deltoid, its insertion tendon can be easily seen and palpated in the crook of the arm. The biceps innervation is provided by the musculocutaneous nerve.

In this tutorial we will explore the origin, insertion, innervation and function of this important muscle.

0:16 biceps brachii location
0:43 long head of biceps origin
1:31 short head of biceps origin
1:42 insertion at radial tuberosity
2:06 innervation: musculocutaneous nerve
2:16 functions of the biceps brachii

Want to test your knowledge on the muscles of the arm? Take this quiz: https://khub.me/qa9sp

Read more on the movements and muscles of the arm in our free article, in order to enhance your understanding about the arrangement and how the different muscles in our upper extremity work together: https://khub.me/ow7fa

For more engaging video tutorials, interactive quizzes, articles and an atlas of Human anatomy and histology, go to https://khub.me/yaj92