Thenar

Definition

The thenar refers to the group of muscles found in the palm of the hand, primarily at the base of the thumb. These muscles are responsible for the movement and strength of the thumb, allowing for grip and manipulation of objects.

Related terms

Flexor pollicis brevis: A muscle in the thenar group that flexes the thumb, making it possible to bend it across the palm.

Abductor pollicis brevis: This muscle abducts the thumb, allowing it to move away from the palm, akin to spreading your fingers apart.

Opponens pollicis: A muscle that rotates and brings the thumb toward the little finger, facilitating opposition and grasp functions.