Deltoid tuberosity

Definition

The deltoid tuberosity is a rough, raised area on the middle of the humerus (the long bone of the upper arm) where the deltoid muscle attaches. It serves as an anchor point allowing for muscle attachment which facilitates arm movement and stability.

Related terms

Humerus:

The long bone in the upper arm that extends from the shoulder to the elbow, serving as a structural framework of the arm.

Deltoid Muscle: A large, triangular-shaped muscle responsible for lifting the arm and giving it range of motion.

Tendons:

Tough, flexible bands of fibrous tissue that connect muscles to bones, facilitating movement at joints