General Medicine General e3a3c296 Action of Lumbricals is A Flexion at Metacarpo - Phalangeal joint and flexion at Interphalangeal joint B Extension at Metacarpo - Phalangeal joint and extension at Interphalangeal joint C Flexion at Metacarpo - Phalangeal joint and extension at Interphalangeal joint D Extension at Metacarpo - Phalangeal joint and flexion at Interphalangeal joint