0 relating to the lumbricals (= the small muscles in the palm of the hands and the soles of the foot)
It is a fleshy, flat, triangular, and fan-shaped muscle deep in the thenar compartment beneath the long flexor tendons and the lumbrical muscles at the center of the palm.
Three common palmar digital arteries arise from the arch, proceeding down on the second, third, and fourth lumbrical muscles, respectively.
The tendons unite with the interosseous and lumbrical muscles to form the extensorhood mechanism.
A deficient lumbrical controlling the flexion of the fingers, and abnormalities of the flexor and extensor tendons.
