Final answer:
The muscles of the hypothenar eminence are innervated by the ulnar nerve, which controls the fine motor movements of the hand, including the little finger.
Step-by-step explanation:
The muscles of the hypothenar eminence, which include the abductor digiti minimi, flexor digiti minimi brevis, and the opponens digiti minimi, are innervated by the ulnar nerve. These muscles are on the medial aspect of the palm and act on the little finger, playing a crucial role in the complex movements of the hand. The intrinsic muscles of the hand, which also include the thenar and intermediate muscle groups, provide the fine motor control necessary for actions such as typing or writing. The ulnar nerve is responsible for innervating most of the intrinsic muscles of the hand, allowing for precise manipulation of the fingers.