Hand Body region Upper Body The intrinsic muscles of the hand — thenar, hypothenar, interossei, and lumbricals. 11 muscles Abductor Digiti Minimi Muscle Of Hand Abductor Pollicis Brevis Adductor Pollicis Dorsal Interossei Of The Hand Flexor Digiti Minimi Brevis (Hand) Flexor Pollicis Brevis Lumbricals Of The Hand Opponens Digiti Minimi Opponens Pollicis Palmar Interossei Palmaris Brevis