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Ant. wrist & palm
Gross II - Zumpano Fall 2010
Question | Answer |
---|---|
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) |