Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
41 Cards in this Set
- Front
- Back
|
What is found in the hypothenar compartment? |
- palmaris brevis muscles - abductor digiti minimi - flexor digiti minimi brevis - opponens digiti minimi |
|
|
What is found in the central compartment? |
- lumbricals - flexor tendons - superficial palmar arch - digital vessels, nerves |
|
|
What is found in the thenar compartment? |
- abductor pollicis brevis - flexor pollicis brevis - opponens pollicis |
|
|
What palmar branches can be found in the hand? |
- palmar branch of median nerve
- palmar branch of ulnar nerve - palmar branch of superficial radial nerve |
|
|
What supplies skin over the proximal 1/2 of the central palm? |
palmar branch of median nerve |
|
|
What supplies skin over the distal 1/2 of hypothenar, 5th digit, 4th digit medial side? |
superficial ulnar nerve |
|
|
What fingers are the palmer interossei found on? |
1, 2, 4, 5 |
|
What is the function of this muscle? |
- 2nd palmar interossei - adduct 1st finger - flex metacarpophalangeal - extend interphalangeal |
|
|
What is the O and I of the palmar interossei? |
2,3,4 interossei O: 2,4,5 metacarpal shaft I: bases of proximal phalanges 1st interossei O: ulnar surface of base of 1st metacarpal I: base of proximal phalange |
|
|
What innervates palmar interossei? |
deep ulnar nerve C8T1 |
|
|
What fingers are the dorsal interossei between? |
all fingers (1,2; 2,3; 3,4; 4,5) |
|
|
What is the innervation and action of the dorsal interossei? |
- deep ulnar nerve C8T1 - abduct 2,3,4 digits - flex metacarpophlangeal joints - extend interphalangeal joints |
|
|
What is the dorsal extensor expansion? |
- transverse slip - collateral slip - axial slip |
|
|
What is the origin of lumbricals 1 and 2? |
from the lateral two tendons of flexor digitorum profundus |
|
|
What is the origin of lumbricals 3 and 4? |
medial two tendons of FDP |
|
|
What is the innervation of lumbricals? |
- lumbricals 1, 2: median nerve, common palmar digital branch - lumbricals 3, 4: deep ulnar nerve |
|
|
What two carpal bones does flexor pollicis brevis originate from? |
- scaphoid and trapezium - also from flexor retinaculum |
|
|
What is the innervation of FPB? |
- superficial head: median nerve, recurrent branch - deep head: deep ulnar nerve |
|
|
Abductor pollicis and flexor pollicis brevis have the same origin. T/F |
True |
|
|
What is the action of FPB? |
flexes thumb at carpometacarpal and metacarpophalangeal joints |
|
|
What is the action abductor pollicis brevis? |
abducts thumb at carpometacarpal and metacarpophalangeal joints |
|
|
What is the innervation of abductor pollicis brevis? |
median nerve; recurrent branch |
|
|
Palmaris brevis has no skeletal attachments. T/F |
True - from flexor retinaculum to skin on ulnar border of palm |
|
What is the innervation of this muscle? |
- flexor digiti minimi brevis - deep ulnar nerve |
|
|
What is the innervation of palmaris brevis? |
superficial ulnar nerve |
|
What muscle is this? |
- abductor digiti minimi - pisiform to proximal phalangeal - deep ulnar nerve |
|
|
What is the origin of adductor pollicis? |
- oblique head: capitate, 2nd and 3rd metacarpal bases - transverse head: 3rd metacarpal shaft |
|
|
What is the insertion of adductor pollicis? |
medial side of base of proximal phalanx of thum |
|
|
What is the innervation of AP? |
deep ulnar nerve |
|
|
What muscles have their origin on the flexor retinaculum, scaphoid and trapezium? |
- opponens pollicis - flexor pollicis brevis - abductor pollicis brevis |
|
|
What innervates opponens pollicis? |
median nerve recurrent branch |
|
What muscle has attachments here? |
- opponens digiti minimi - from hook of hamate, fl. retinaculum - to medial surface of shaft of 5th metacarpal |
|
|
What is the innervation opponens digiti minimi? |
deep ulnar nerve |
|
|
- opponens pollicis - opponens digiti minimi |
|
|
What neurovascular structures are found within the osseofibrous tunnels? |
vincula; artery and nerve inside for the tendons |
|
|
What is the first branch that emerges our of the carpal tunnel? |
recurrent median nerve |
|
|
What passes through the two heads of adductor pollicis? |
deep palmar arterial arch |
|
|
What forms the deep palmer arterial arch? |
deep ulnar artery and radial artery |
|
|
What forms the superficial palmer arch? |
ulnar artery and superficial palmar branch from radial artery |
|
|
What two arteries supply the thumb? |
- princeps pollicis - 1st dorsal metacarpal / dorsalis pollicis |
|
|
What are the palmar metacarpal arteries a branch from? |
from the deep palmar arterial arch anastomose with common palmar digital arteries |
