Hand Flashcards
Abductor Pollicis Brevis
Origin
Flexor Retinaculum, tubercle of trapezium
Abductor Pollicis Brevis
Insertion
Base of proximal phalanx of 1st digit
Abductor Pollicis Brevis
Innervation
Thenar (Recurrent) branch of Median N. (C5-T1)
Abductor Pollicis Brevis
Action
Digits: abduction of 1st digit
Flexor Pollicis Brevis
Origin
Flexor Retinaculum, trapezium
Flexor Pollicis Brevis
Insertion
Base of proximal phalanx radial side of 1st digit
Flexor Pollicis Brevis
Innervation
Thenar (Recurrent) branch of Median N. (C5-T1)
Deep branch of Ulnar N. (C8-T1)
Flexor Pollicis Brevis
Action
Digits: Flexion of 1st digit
Opponents Pollicis
Origin
Flexor Retinaculum, trapezium, scaphoid
Opponens Pollicis
Insertion
Lateral side of 1st metacarpal
Opponens Pollicis
Innervation
Thenar (Recurrent) branch of Median N. (C5-T1)
Opponens Pollicis
Action
Digits: Opposes 1st digit to other digits
Adductor Pollicis
Origin
Oblique head: capitate, bases of 2-3 metacarpals
Transverse Head: palmar surface of 3rd metacarpal
Adductor Pollicis
Insertion
Base of proximal phalanx of 1st digit on ulnar side
Adductor Pollicis
Innervation
Deep branch of Ulnar N. (C8-T1)
Adductor Pollicis
Action
Digits: adduction of 1st digit
Abductor Digiti Minimi
Origin
Pisiform
Abductor Digiti Minimi
Insertion
Base of proximal phalanx of 5th digit
Abductor Digiti Minimi
Innervation
Deep branch of Ulnar N. (C8-T1)
Abductor Digiti Minimi
Action
Digits: abduction of 5th digit
Flexor Digiti Minimi Brevis
Origin
Hamulus of hamate, flexor Retinaculum
Flexor Digiti Minimi Brevis
Insertion
Base of proximal phalanx of 5th digit
Flexor Digiti Minimi Brevis
Innervation
Deep branch of ulnar N. (C8-T1)
Flexor Digiti Minimi Brevis
Action
Digits: flexion of 5th digit
Opponens digit minimi
Origin
Hamulus of hamate, flexor retinaculum
Opponens digit minimi
Insertion
Ulnar side of 5th metacarpal
Opponens digit minimi
Innervation
Deep branch of ulnar n. (C8-T1)
Opponens digit minimi
Action
Digits: opposes 5th digit with thumb
Lumbricals
Origin
Four tendons of flexor Digitorum Profundus
Lumbricals
Insertion
Radial side of dorsal digital expansions 2nd-5th digits
Lumbricals
Innervation
1-2 Median N.(C5-T1)
3-4 Deep Branch of Ulnar N. (C8-T1)
Lumbricals
Action
Digits: flex metacarpophalangeal joints, extend interphalangeal joints
Dorsal Interossei
Origin
Sides of metacarpals
Dorsal Interossei
Insertion
Bases of proximal phalanges
Dorsal Interossei
Innervation
Deep branch of ulnar n. (C8-T1)
Dorsal Interossei
Action
Digits: Abduction
Palmar Interossei
Origin
Sides of metacarpals
Palmar Interossei
Insertion
Dorsal digital expansions 2nd, 4th, 5th digits
Palmar Interossei
Innervation
Deep Branch of Ulnar N. (C8-T1)
Palmar Interossei
Action
Digits: adduction