The hypothenar muscles are a group of three muscles located on the palm's ulnar side, responsible for the movement of the little finger. These muscles include the abductor digiti minimi, flexor digiti minimi brevis, and opponens digiti minimi. They play a crucial role in gripping and manipulating objects. These muscles are innervated by the ulnar nerve, which is essential for their function. The hypothenar eminence, the fleshy mound at the base of the little finger, is formed by these muscles. Proper functioning of the hypothenar muscles is important for hand dexterity and strength.