Brachialis muscle

This video tutorial covers the brachialis muscle, detailing its origin, insertion, innervation, and function. The brachialis is a strong muscle located in the upper arm, primarily beneath the biceps brachii. It originates from the distal half of the humerus and inserts at the ulna's tuberosity. The muscle is innervated by the musculocutaneous nerve, with some individuals also receiving innervation from the radial nerve. The brachialis is the strongest flexor of the elbow joint, contributing to elbow flexion and maintaining joint capsule tension. The video concludes with a call to explore more anatomy resources on KenHub.

How does the brachialis muscle contribute to the surface anatomy of the arm?

Explain why the brachialis is considered stronger than the biceps brachii.