Question

There are 3 origins for the triceps brachii, but only one insertion. Where is the insertion?

Scapula
Humerus
Ulna
None of the above

Answer 1

The insertion of the triceps brachii muscle is the ulna.

Step-by-step explanation:

The triceps brachii muscle is a large muscle located at the back of the upper arm. It is responsible for extending the elbow joint and involves various movements, including pushing and pulling. The muscle has three heads or origins: the long head, lateral head, and medial head, but all three of these heads converge into a single tendon, which attaches to the ulna bone in the forearm. Therefore, the insertion of the triceps brachii muscle is the ulna.