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Pinky finger

The pinky finger is the fifth digit of the hand and is the least often utilized of the five fingers. As the smallest digit, the pinky is located next to the ring finger. In comparison to other fingers, the pinky possesses the most diminished range of motion. The finger is controlled by a group of muscles that includes the fourth lumbrical and the extensor digiti minimi. In addition, the muscles of the hypothenar eminence assist the pinky. Those muscles include the abductor minimi digiti, the opponens digiti minimi, and the flexor digiti minimi. These muscles are supplied with oxygenated blood by the ulnar artery. They are innervated by the ulnar nerve. The little finger's bones consist of the three types of phalanges. The pinky finger contains a proximal phalange jointed to a metacarpal. The proximal is jointed to the middle phalanx. At the tip of the pinky finger is the distal phalanx. This bone also provides the skeletal support for the pinky's fingernail, as well as the sensitive mass of tissue making up the fingertip.

Written and medically reviewed by the Healthline Editorial Team
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In Depth: Pinky finger

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