Brachialis Muscle

Author: Scott A. Sheffield MS

Last update:

The brachialis muscle is a short and powerful arm muscle and the strongest flexor of the elbow joint.

image descriptionBrachialis Muscle

An image showing the brachialis muscle (highlighted) attached to the upper limb skeleton in addition to the Deltoid, Pectoralis major, Coracobrachialis and Biceps brachii muscles
An image showing the brachialis muscle (highlighted) attached to the upper limb skeleton in addition to the subscapularis, Teres major and coracobrachialis muscles
An image showing the brachialis muscle (highlighted) attached to the upper limb skeleton in addition to the subscapularis and coracobrachialis muscles
An image showing the brachialis muscle attached to the upper limb skeleton
1
2
3
4

image descriptionAttachments of Brachialis Muscle: Origin & Insertion

Origin: (proximal attachments):
Anterior, distal half of humerus.

Insertion: (distal attachments):
Coronoid process and tuberosity of ulna.

What if you could learn and remember brachialis anatomy more easily? With this time-saving upper extremity muscle anatomy reference chart, you can!

An image showing the brachialis muscle (highlighted) attached to the upper limb skeleton in addition to the Deltoid, Pectoralis major, Coracobrachialis and Biceps brachii muscles
An image showing the brachialis muscle attached to the upper limb skeleton
An image showing the origin and insertion of the Brachialis muscle on the upper limb
1
2
3

Actions of Brachialis Muscle on the forearm (radius/ulna):

image descriptionFlexes forearm at elbow.

Nerve to Muscle and its Spinal Segment:

Musculocutaneous nerve (C5, C6).