| Term | Definition |
| Origin of adductor pollicis oblique head | bases of 2nd * 3rd metacarpals and adjacent carpal bones |
| Origin of adductor pollicis transverse head | body of 3rd metacarpal |
| Insertion of adductor pollicis | base of proximal phalanx of thumb |
| Function of adductor pollicis | thumb add @ CMC jt |
| Innervation of adductor pollicis | ulnar nerve(C8-T1) |
| Origin of abductor pollicis brevis (thenar eminence) | flexor retinaculum, scaphoid & trapezium |
| Insertion of abductor pollicis brevis | base of proximal phalanx of thumb |
| Function of abductor pollicis brevis | thumb abd @ CMC jt |
| Innervation of abductor pollicis brevis | median nerve(C8-T1) |
| Origin of flexor pollicis brevis (thenar eminence) | flexor retinaculum and trapezium |
| Insertion of flexor pollicis brevis | base of proximal phalanx of thumb |
| Function of flexor pollicis brevis | thumb flexion @ CMC and MCP jt |
| Innervation of flexor pollicis brevis | median nerve(C8-T1) |
| Origin of abductor digiti minimi (hypothenar eminence) | pisiform bone |
| Insertion of abductor digiti minimi | base of proximal phalanx of 5th digit |
| Function of abductor digiti minimi | abd 5th digit @ MCP jt |
| Innervation of abductor digiti minimi | ulnar nerve(C8-T1) |
| Origin of opponeus pollicis (thenar eminence) | flexor retinaculum and trapezius |
| Insertion of opponeus pollicis | metacarpal of thumb |
| Function of opponeus pollicis | CMC opposition |
| Innervation of opponeus pollicis | median nerve(C8-T1) |
| Origin of flexor digiti minimi (hypothenar eminence) | hook of hamate bone and flexor retinaculum |
| Insertion of flexor digiti minimi | base of proximal phalanx of 5th digit |
| Function of flexor digiti minimi | flexes 5th digit @ MCP jt |
| Innervation of flexor digiti minimi | ulnar nerve(C8-T1) |
| Origin of opponens digiti minimi (hypothenar eminence) | hook of hamate bone and flexor retinaculum |
| Insertion of opponens digiti minimi | 5th metacarpal |
| Function of opponens digiti minimi | opposition of pinky CMC jt |
| Innervation of opponens digiti minimi | ulnar nerve(C8-T1) |
| Origin of lumbricals | tendons of flexor digitorum profundus |
| Insertion of lumbricals | extensor digitorum tendon of digits 2-5 |
| Function of lumbricals | flexion @ MCP jt and ext @ PIP and DIP jt |
| Innervation of lumbricals | 1&2: median nerve(C8-T1); 3&4: ulnar nerve(C8-T1) |
| Origin of dorsal interossei | adjacent sides of 2 metacarpals |
| Insertion of dorsal interossei | proximal phalanges |
| Function of dorsal interossei | finger abd @ MCP jt |
| Innervation of dorsal interossei | ulnar nerve(C8-T1) |
| Origin of palmar interossei | palmar surface of metacarpals |
| Insertion of palmar interossei | proximal phalanges |
| Function of palmar interossei | finger add @ MCP jt |
| Innervation of palmar interossei | ulnar nerve(C8-T1) |
| intrinsic muscles | have both origin and insertion in the hand |