The lumbricals are intrinsic muscles of the hand that flex the metacarpophalangeal joints, [1] and extend the interphalangeal joints. [1][2] The lumbrical muscles of the foot also have a similar …

Oct 30, 2023 · Learn more about the anatomy of hand muscles, including the lumbricals, using the articles, videos, illustrations and quizzes included in the following study units:

Nov 6, 2025 · There are four lumbricals in the hand, each associated with a finger. They are very crucial to finger movement, linking the extensor tendons to the flexor tendons.

Dec 14, 2021 · Interactive 3D model and details on the anatomy of the lumbricals of the hand covering their origin, insertion, action, innervation and blood supply.

The lumbricals (Latin: musculi lumbricales) are four deep intrinsic muscles of the hand that extend between the metacarpal bones. Together with the dorsal and palmar interossei, the lumbricals …

Jul 10, 2024 · The four slender hand lumbrical muscles were named because of their worm-like form (L. lumbricus, earthworm). They are short muscles of the hand alongside with the dorsal …

• Index and long finger lumbricals (unipennate) ““ radial side of flexor digitorum profundus tendons to index and long fingers. • Ring finger lumbrical (bipennate) ““ ulnar aspect of long finger …

May 6, 2025 · Lumbricals are small, worm-shaped muscles in the hand that have a big impact on hand function and finger movement.

The lumbricals are deep muscles of the hand that flex the metacarpophalangeal joints and extend the interphalangeal joints. It has four, small, worm-like muscles on each hand.

Jun 6, 2024 · The lumbricals are 4 short intrinsic muscles of the hand, primarily responsible for the movements of the fingers. Their worm-like appearance earns them the name Lumbricals, …