Brachialis – Thumb and Elbow Pain
The brachialis runs from the lower, front part of the upper arm, across the elbow to the middle of the forearm. It provides most of the strength for elbow flexion. When you do a biceps curl, you are primarily [...]
Biceps Brachii – Upper Arm/Shoulder Pain
The biceps brachii is a large muscle of the upper arm. Originally called "musculus", it got its name from the Latin for mouse, referring to the arch of a mouse's back. It then gave its name back to all [...]
Coracobrachialis – Front Shoulder/Back Arm Pain
The coracobrachialis muscle is a small muscle in the front of the shoulder. It is often missed as a source of pain in the front of the shoulder. It originates on the top of the coracoid process and proceeds [...]
Infraspinatus Muscle – Shoulder to Hand Pain
The infrapinatus muscle is a thick irregular rotator cuff muscle located on the back of your shoulder blade. It has a strong connection to the shoulder and along with teres minor, rotates your arm externally. Most importantly, in conjunction [...]
Supraspinatus Muscle – Arm Raising Pain
The supraspinatus muscle is the most active of the four rotator cuff muscles. It is responsible for abduction of the your arm at the shoulder. Most importantly, in conjunction with the other rotator cuff muscles, it is responsible for [...]