Subscapular

Subscapular refers to the region beneath the scapula, or shoulder blade. It is most commonly used in reference to two structures: the subscapularis muscle and the subscapular artery.

Subscapularis Muscle

The subscapularis muscle is a large triangular muscle which fills the subscapular fossa and inserts into the lesser tubercle of the humerus and the front of the shoulder-joint capsule. It is one of the four muscles that make up the rotator cuff, which stabilizes the shoulder joint.

Subscapular Artery

The subscapular artery is the largest branch of the axillary artery, and it supplies blood to the muscles in the back, rib cage, and neck area. It divides into the circumflex scapular artery and the thoracodorsal artery.

Clinical Significance

Injury to the subscapularis muscle or subscapular artery can cause significant pain and loss of function in the shoulder. Treatment may involve physical therapy, medication, or surgery.

See Also

• Scapula
• Rotator cuff
• Axillary artery

References

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