Triceps Brachii Muscle - Origin, Insertion & Innervation - Human Anatomy | Kenhub

The triceps brachii (triceps) is a large, three-headed muscle of the upper arm. It consists of the long head, medial head and the lateral head.

All three heads together form a thick tendon which inserts at the olecranon of the ulna and additionally to the capsule of the elbow joint and antebrachial fascia. The triceps brachii forms the posterior compartments of our arms and is one of the strongest muscles of the arm, performing extension of the forearm, extension and adduction in the shoulder joint. It is innervated by the radial nerve.

In this video we will introduce you to the anatomy of the triceps including its nerve supply and the origins and insertions of its heads.

- 0:17 triceps brachii location
- 0:36 heads of the triceps
- 1:07 long head
- 1:19 medial head
- 1:28 lateral head
- 1:42 insertion at the olecranon
- 1:58 innervation of the triceps brachii

[terryzuniga]

Thanks a lot, u guys have about the only video or picture that I've found actually explaining this topic successfully, I was so confused

[umkshorts]

Thanks Alot! You guys are just awesome

[asmaenad]

Thanks alot. This video is great! Helped me alot.

[dingdongrocket]

wow, this video is great. keep making more content. how can i learn more

[arbamld]

it is much more fun than reading a text-book thanks alot!

[HusseinAmeen]

Dude it's great and all, but I want to see where the medial head connects to the tricep tendon, like if you could make the long and lateral heads dissapear or decrease their oppasities so we could see only the medial head, because I only saw the tip of it

[luislol]

Sadly I have high insertions :( not genetically gifted

[KY-dggp]

But, what is the function? Does every head have it's own function/movement? I can't find any information about it, only that it extends the ellbow.

[claudiuc.]

2:10 really? Not rather extremly flexion?

[abedalrahman]

u are just reading a book .. students really don't like this way