<prompt> Function of the lumbricals is -Flexion at MCP jointFlexion at IP jointsAdduction of the fingersAbduction of the fingers  <response>: Ans. is a i.e., Flexion at MCP joint MuscleNerve supplyActionLumbricals 4First and second: Median nerve; Third and fourth: Deep branch of ulnar nerve.Flex the MP joints extend the IP joints of the fingers.Palmar interossei 4Deep branch of ulnar nerve.Adducts digits, flex the MP joints and extends the IP joints.Dorsal interossei 4Deep branch of ulnar nerve.Abducts fingers, flex MP joints and extends IP joints. 