Deltoid tuberosity

Deltoid Tuberosity

The Deltoid Tuberosity is a prominent area of bone on the humerus to which the deltoid muscle attaches. It is located on the lateral aspect of the humerus, roughly halfway down its length.

Anatomy

The deltoid tuberosity is a rough, triangular area on the anterolateral surface of the middle of the humerus. It is the point of attachment for the deltoid muscle, a large, triangular muscle that covers the shoulder joint on three sides and is responsible for lifting the arm and giving the shoulder its range of motion.

Function

The deltoid tuberosity serves as the attachment point for the deltoid muscle. This muscle is responsible for the abduction of the arm at the shoulder joint, as well as assisting in other movements of the arm and shoulder.

Clinical Significance

Injuries to the deltoid muscle or the deltoid tuberosity can result in pain, swelling, and limited range of motion in the shoulder. These injuries can occur as a result of trauma, overuse, or degenerative conditions. Treatment typically involves rest, physical therapy, and in some cases, surgery.

See Also

• Humerus
• Deltoid muscle
• Shoulder joint

References

Deltoid tuberosity Resources
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