Features of Humerus Bone

The humerus is a long bone located in the upper limb, spanning from the shoulder to the elbow joint.

The greater tubercle is a bony prominence located on the lateral side of the humerus, below the anatomical neck.

The lesser tubercle is a smaller bony projection located on the anterior side of the humerus, near the anatomical neck.

The greater tubercle is a prominent bony projection located on the lateral side of the proximal humerus. It provides attachment points for various muscles and tendons of the shoulder.

Features of Humerus Bone

The narrow intertubercular groove, also known as the sulcus, passes between the greater and lesser tubercles of the humerus. This groove provides a pathway for certain structures, such as tendons and blood vessels, to pass through and interact with the surrounding shoulder anatomy.

The roughened, U-shaped area located at the middle portion of the humeral shaft is known as the deltoid tuberosity. This prominence serves as an attachment site for the deltoid muscle, a major muscle of the shoulder that is involved in various arm movements.

The capitulum is a rounded knob located on the lateral aspect of the distal humerus. It forms part of the articulation with the radius bone of the forearm, specifically the radial head.

The radial fossa is an anterior depression located above the capitulum on the distal humerus. It is specifically situated on the medial side of the elbow joint. The radial fossa accommodates the radial head when the elbow is flexed, allowing for smooth movement and articulation between the humerus and the radius bone.

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