Lumbricals muscle

Origin of Lumbricals

Palmar 1 - 3: Palmar surfaces of 2nd, 4th and 5th metacarpals (unipennate muscles)

Insertion of Lumbricals

Palmar 1 - 3: Extensor expansions of digits and bases of proximal phalanges of digits 2, 4 and 5

Muscle Function of Lumbricals

Palmar 1 - 3: Adduct digits toward axial line and assist lumbricals in flexing metacarpophalangeal joints and extending interphalangeal joints

Arterial (Blood) Supply of Lumbricals

Palmar 1 - 3: Palmar metacarpal arteries
lumbricals muscles

Lumbricals Video

Lumbrical muscles of the Hand
Forearm & Hand 8310745404311989331

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