Intrinsic Hand Muscle OIIAs

opponens pollicis origin

Flexor retinaculum and tubercle of scaphoid and trapezium

opponens pollicis insertion

lateral side of 1st metacarpal

opponens pollicis innervation

recurrent branch of median nerve (C5-T1)

abductor pollicis brevis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

abductor pollicis brevis insertion

lateral side of base of proximal phalanx of thumb

abductor pollicis brevis innervation

Recurrent branch of median nerve (C7-T1)

flexor pollicis brevis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

flexor pollicis brevis insertion

flexor retinaculum and tubercles of scaphoid and trapezium

flexor pollicis brevis innervation

deep branch of ulnar nerve (C7-T1)

adductor policis origin

base of metacarpals 2/3, capitate, adjacent carpals, and anterior surface of shaft of third metacarpal

adductor pollicis insertion

medial side of base of proximal phalanx of thumb

adductor pollicis innervation

Deep branch of ulnar nerve (C7-T1)

abductor digiti minimi origin

pisiform

abductor digiti minimi insertion

medial side of base of proximal phalanx of 5th digit

abductor digiti minimi innervation

deep branch of ulnar nerve (C7-T1)

flexor digiti minimi brevis origin

hook of hamate and flexor retinaculum

flexor digiti minimi brevis insertion

medial side of base of proximal phalanx of 5th digit

flexor digiti minimi brevis innervation

deep branch of ulnar nerve (C7_T1)

opponens digiti minimi origin

hook of hamate and flexor retinaculum

opponens digiti minimi insertion

medial border of 5th metacarpal

opponens digiti minimi innervation

Deep branch of ulnar nerve (C7-T1)

Lumbricals 1 and 2 origin

lateral two tendons of flexor digitorum profundus

lumbricals 1 and 2 insertion

lateral sides of extensor expansions on fingers 2-5

lumbricals 1 and 2 innervation

median nerve (C5-T1)

lumbricals 3 and 4 origin

medial three tendons of flexor digitorum profundus

lumbricals 3 and 4 insertion

Lateral sides of extensor expansions of digits 2-5

lumbricals 3 and 4 innervation

deep branch of ulnar nerve (C7-T1)

dorsal interossei origin

adjacent sides of metacarpals

dorsal interossei insertion

bases of proximal phalanges and extensor expansions of fingers 2-4

palmer interossei origin

palmer surface of metacarpals 2,4,5

palmar interossei insertion

Bases of proximal phalanges and extensor expansions of digits 2, 4, and 5

palmer interossei innervation

deep branch of ulnar nerve (C7-T1)