The gland has three borders anterior, medial and posterior.

The medial border is thicker, of greater length, and consequently more prominent, than the lateral.

At the medial border of the latter tendon these two layers join together, forming a compartment in which the tendons are enclosed.

They proceed anterior and inferior along the medial border of the psoas major muscles.

On each side, the lateral boundary is the medial border of the carotid sheath.

It presents near its medial border a long fissure, termed the hilum.

The anterior surface includes that portion of the shaft which is situated between the lateral and medial borders.

The medial border of the right lung is nearly vertical, while the left lung contains a cardiac notch.

The muscle is inserted on the superior angle and adjacent medial border of the scapula.

The medial border is thick, rough, and everted, especially in females.