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Lumbrical Muscles of Hand (Left)
Muscular System

Lumbrical Muscles of Hand (Left)

Musculi lumbricales manus

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Description

The lumbrical muscles are one of five groups of intrinsic muscles in the hand. These muscles mainly act to simultaneously flex the metacarpophalangeal joints and extend the interphalangeal joints of the fingers.

There are four lumbrical muscles in the hand and, from lateral to medial, they are numbered one to four. They are found in the central compartment of the hand.

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