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Ant. wrist & palm

Gross II - Zumpano Fall 2010

QuestionAnswer
Flexor retinaculum attaches medially to __ and laterally to __? hamate & pisiform; scaphoid & trapezium
What makes up the ROOF of the CARPAL TUNNEL? Flexor retinaculum
What makes up the LATERAL border of the CARPAL TUNNEL? Tubercles of scaphoid & trapezium
What makes up the MEDIAL border of the CARPAL TUNNEL? Hook of hamate & pisiform
What makes up the FLOOR of the CARPAL TUNNEL? Palmar ulnocarpal & radiocarpal ligaments
What structures are found in the Carpal Tunnel? Median N, FPL, 4 FDS, 4 FDP
What structures are found surrounding carpal tunnel? Ulnar n & a, FCR
What nerve is the the CANAL OF GUYON? Ulnar n.
What artery is in the CANAL OF GUYON? Ulnar a.
What muscle is in CANAL OF GUYON? FCU
What travels with the deep palmar arch? Ulnar artery
What are the thenar muscles? Abductor pollicis brevis, flexor pollicis brevis, opponens pollicis
What are the hypothenar muscles? Abductor digiti minimi, flexor digiti minimi, opponens digiti minimi
What are the central muscles of the palm? Adductor pollicis, 4 lumbricals, 4 dorsal interossei, 3 palmar interossei
All of the muscles of the palm are innervated by the DEEP BRANCH OF ULNAR N except? Abductor pollicis brevis, Flexor pollicis brevis, Opponens pollicis, 1st & 2nd lumbricals
The muscles of the palm that are not innervated by the deep branch of ulnar n are innervated by what nerve? branches of Medial n.
Origin of ADDUCTOR POLLICIS BREVIS flexor retinaculum & tubercle of trapezium
Insertion of of ADDUCTOR POLLICIS BREVIS Base of proximal phalanx of thumb
Innervation of ADDUCTOR POLLICIS BREVIS Recurrent branches of median n.
Spinal level of ADDUCTOR POLLICIS BREVIS C8
Action of ADDUCTOR POLLICIS BREVIS Adducts thumb
Origin of FLEXOR POLLICIS BREVIS Deep head = trapezoid & capitate; superficial head = flexor retinaculum & tubercle of trapezium
Insertion of FLEXOR POLLICIS BREVIS Base of proximal phalanx of thumb
Innervation of FLEXOR POLLICIS BREVIS Recurrent branch of median n.
Spinal level of FLEXOR POLLICIS BREVIS C8
Action of FLEXOR POLLICIS BREVIS Flexes carpometacarpal and metacarpophalangeal joint of thumb
Origin of OPPONINS POLLICIS Flexor retinaculum, scaphoid & trapezium
Insertion of OPPONINS POLLICIS Entire length of lateral border of metacarpal bone
Innervation of OPPONINS POLLICIS Recurrent branches of median n.
Spinal level of OPPONINS POLLICIS C8
Action of OPPONINS POLLICIS Opposes thumb & other fingers
Origin of ABDUCTOR DIGITI MINIMI Pisiform bone & tendon of flexor carpi ulnaris
Insertion of ABDUCTOR DIGITI MINIMI Base of proximal phalanx of 5th digit
Innervation of ABDUCTOR DIGITI MINIMI Deep branch of ulnar n.
Spinal level of ABDUCTOR DIGITI MINIMI T1
Action of ABDUCTOR DIGITI MINIMI Abducts little finger
Origin of FLEXOR DIGITI MINIMI hamulus of hamate & flexor retincaculum
Insertion of FLEXOR DIGITI MINIMI Base of proximal phalanx of 5th digit
Innervation of FLEXOR DIGITI MINIMI Deep branch of ulnar nerve
Spinal level of FLEXOR DIGITI MINIMI T1
Action of FLEXOR DIGITI MINIMI Flexes little finger
Origin of OPPONENS DIGITI MINIMI hAMULUS OF HAMATE & FLEXOR RETINACULUM
Insertion of OPPONENS DIGITI MINIMI Ulnar side of 5th metacarpal
Innervation of OPPONENS DIGITI MINIMI Deep branch of ulnar n.
Spinal level of OPPONENS DIGITI MINIMI T1
Action of OPPONENS DIGITI MINIMI Brings little finger into opposition with the thumb
Origin of the LUMBRICALS 4 TENDONS OF FLEXOR DIGITORUM PROFUNDUS
Insertion of the LUMBRICALS Radial side of dorsal digital expansion of 2nd - 5th digits
Innervation of the LUMBRICALS Radial 2 (1st & 2nd) = median n Ulnar 2 (3rd & 4th) = deep branch of ulnar n.
Spinal level of the LUMBRICALS T1
Action of the LUMBRICALS Flex metacarpophalangeal joints & extend interphalangeal joints
Origin of ADDUCTOR POLLICIS Oblique head = capitate and bases of 2nd & 3rd metacarpal bones; Transverse head = Palmar surface of 3rd metacarpals
Insertion of ADDUCTOR POLLICIS Common insertion on ulnar side of the base of the proximal phalanx of thumb
Innervation of ADDUCTOR POLLICIS Deep branch of ulnar n.
Spinal level of ADDUCTOR POLLICIS T1
Action of ADDUCTOR POLLICIS Adducts thumb
What muscle isn't a thenar muscle? adductor pollicis
What are the criteria for a muscle to be considered a "thenar muscle"? Innervated by recurrent branch of median n & spinal level C8
Deep palmar arch branches to what arteries? Princeps pollicis a. & 2 or 3 palmar metacarpal arteris
Deep palmar arch comes from what artery? Radial a.
Deep palmar arch is blood supply for what muscles? Instrinsic hand M & thumb
Deep palmar branch of ulnar artery anastamoses with what? radial a.
Origin of PALMAR INTEROSSEI 1ST = ULNAR SIDE OF 2ND METACARPAL; 2nd & 3rd = radial side of 4th & 5th metacarpals
Insertion of PALMAR INTEROSSEI 1st = ulnar side of base of 2nd proximal phalanx; 2nd & 3rd = radial side of base of 4th &5th proximal phalanges
Innervation of PALMAR INTEROSSEI Deep branch of ulnar n
Spinal level of PALMAR INTEROSSEI T1
Action of PALMAR INTEROSSEI 3 PAD (adducts digits 5,4,2. Assists w/ lumbricals)
Origin of DORSAL INTEROSSEI Each arise by 2 heads from adjacent sides of metacarpals
Insertion of DORSAL INTEROSSEI Radial 2 = radial side of bases of 2nd & 3rd proximal phalanges and dorsal digital expansion Ulnar 2 = ulnar side of bases of 3rd & 4th proximal phalanges & dorsal digital expansion
Innervation of DORSAL INTEROSSEI Deep branch of ulnar n
Spinal level of DORSAL INTEROSSEI T1
Action of DORSAL INTEROSSEI 4 DAB (abduct medial 4 digits and assists lumbricals)
Created by: mrw2013