What is deltoid tuberosity of humerus?

• The deltoid tuberosity is a rough, triangular-shaped bump on the lateral side of the humerus bone, near the midpoint of the bone.

• It serves as the attachment point for the deltoid muscle, which is the large muscle that covers the shoulder joint.

• The deltoid tuberosity is essential for the proper functioning of the shoulder joint, as it provides stability and strength to the joint when the deltoid muscle contracts.

• In addition to the deltoid muscle, other muscles of the arm also have attachment points on the deltoid tuberosity, including the lateral head of the triceps brachii muscle.

• The size and prominence of the deltoid tuberosity may vary among individuals, depending on factors such as muscle development and physical activity levels.