origin and insertion of the flexor carpi radialis
Flexor carpi radialis muscle This muscle originates on the medial epicondyle of the humerus. It runs just laterally of flexor digitorum superficialis and inserts on the anterior aspect of the base of the second metacarpal, and has small slips to both the third metacarpal and trapezial tuberosity.[1]
Sole (foot) In the fourth layer. the dorsal and plantar interossei are located between and below the metatarsal bones and act as antagonists.[2]