Monday, 14 April 2014

Coracobrachialis Muscle

Today's focus is an arm muscle called CORACOBRACHIALIS
not the smallest word is it? Let's break it down into two words: CORACO is the name of the bony prominence where the muscle starts and BRACHIALIS refers to the arm.

Coracobrachialis hides in your armpit, under the pec (chest) muscle and anterior deltoid (shoulder muscle)
official attachment points:
-originates from the the coracoid process of the scapula (front of the shoulderblade)
- inserts onto the middle 1/3 of the medial shaft of the humerus (AKA about half way into the inner side of your upper arm) Your humerus is your upper arm bone from shoulder to elbow.

FLEXION and ADDUCTION of the arm at the glenohumeral (shoulder) joint.

So coracobrachialis helps to raise your arm forward (flexion) and bring your arm across your body (towards midline of body = adduction)