Deltoid tuberosity

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Deltoid Tuberosity

The Deltoid Tuberosity (pronunciation: DEL-toyd too-beh-ROS-ih-tee) is a prominent area of bone on the humerus that serves as the attachment site for the deltoid muscle.

Etymology

The term "Deltoid" is derived from the Greek word "delta," referring to the triangular shape of the deltoid muscle. "Tuberosity" comes from the Latin "tuberositas," meaning a swelling or protuberance.

Anatomy

The Deltoid Tuberosity is located on the lateral aspect of the mid-humerus. It is a rough, triangular area where the deltoid muscle attaches. This muscle is responsible for the abduction of the arm at the shoulder joint. The deltoid tuberosity is palpable in most individuals, especially when the deltoid muscle is contracted.

Related Terms

  • Humerus: The bone of the upper arm or forelimb, forming joints at the shoulder and the elbow.
  • Deltoid Muscle: A large triangular muscle covering the joint of the shoulder, responsible for lifting the arm away from the body.
  • Shoulder Joint: The joint connecting the upper arm with the torso, allowing a wide range of motion.

See Also

External links

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