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Shoulder Anatomy 101

Shoulder Anatomy


The rotator cuff is a group of muscles deep within the shoulder joint complex that act synergistically to provide stability to the arm as you lift and move.

How does this translate to real life?

Before you go to lift that dumbbell or put your groceries away, those 4 muscles are firing and contracting to keep your arm moving in a smooth and efficient manner!

Without the cuff, there is no arm elevation. 👨🏻‍🚀

The muscles included in this complex are as follows:

1. Supraspinatus 2. Infraspinatus

3. Teres minor 4. Subscapularis

Often times muscles are viewed as singular individual units acting independently from one another, however this could not be further from the truth! Especially in the case of the rotator cuff, a very specific and efficient balance between muscle activation must be maintained for proper function.

Stay tuned to learn how the rotator cuff can be causing that dull, “tooth ache-like” pain you experience in your shoulder with lifting, moving, or even sleeping! As always, ASK QUESTIONS in the comments or send us a message! We are here to help YOU live a more active and pain free life.


Got questions or need advice? Email us now! Or call us at 724-982-4266 to schedule your FREE Discovery Visit!


Roscoe Physiotherapy Co. is a physical therapy clinic located in Hermitage, PA. We specialize in pre and post-surgical rehabilitation, chronic pain and discomfort, and managing a healthy lifestyle.

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