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;
13 Cards in this Set
- Front
- Back
|
Intrinsic muscles innervated by the Median N. (List 4) |
LOAF: Lumbricals (radial side) Opponens pollicis Abductor pollicis brevis (APB) Flexor pollicis brevis (FPB) (superficial head) |
|
|
Abductor pollicis brevis (Intrinsic muscle innervated by the Median N.) |
ORIGIN: scaphoid, trapezium, flexor retinaculum, and tendon of APL - abductor pollicis longus INSERTION: base of proximal phalanx, radial side of thumb FUNCTION: palmar abduction |
|
|
Opponens pollicis - OIF (Intrinsic muscle innervated by the Median N.) |
ORIGIN: trapezium and flexor retinaculum INSERTION: first metacarpal FUNCTION: opposition |
|
|
Flexor pollicis brevis (FPB): Superficial head - OIF(Intrinsic muscle innervated by the Median N.) |
ORIGIN: trapezium, trapezoid, capitate, and flexor retinaculum INSERTION: base of proximal phalanx, radial side of thumb FUNCTION: thumb MCP flexion, (deep head innervated by ulnar nerve) |
|
|
Lumbricals (radial/lateral side) (Intrinsic muscle innervated by the Median N.) |
ORIGIN: tendons of flexor digitorum profundus, index and middle fingers (radial and palmar sides) INSERTION: radial side of digits II and III into extensor expansion FUNCTION: MCP flexion and extension of IP joints |
|
|
Intrinsic muscles innervated by the ulnar nerve (List 7) |
Abductor digiti minimi (ADM) Opponens digiti minimi (ODM) Flexor digiti minimi (FDM) Adductor Lumbricals (ulnar side) Palmar interossei (PI) Dorsal interossei (DI) |
|
|
Abductor digiti minimi (ADM) Intrinsic muscle innervated by the ulnar nerve |
ORIGIN: pisiform and tendon of flexor carpi ulnaris INSERTION: proximal phalanx of the 5th digitFUNCTION: abduction of the 5th digit |
|
|
Opponens digiti minimi (ADM) Intrinsic muscle innervated by the ulnar nerve |
ORIGIN: hook of hamate and flexor retinaculumINSERTION: 5th metacarpal FUNCTION: opposition of the 5th digit |
|
|
Flexor digiti minimi (FDM) Intrinsic muscle innervated by the ulnar nerve |
ORIGIN: hook of hamate and flexor retinaculumINSERTION: proximal phalanx of 6th digit FUNCTION: flexion of MCP joint and opposition of the 5th digit |
|
|
Adductor Intrinsic muscle innervated by the ulnar nerve |
ORIGIN: (oblique head) - base of the 2nd and 3rd metacarpal, trapezoid and capitate. (Transverse head) - palmar border and shaft of 3rd metacarpal INSERTION: sesamoid, base of proximal phalanx, tendon of extensor pollicis longus FUNCTION: adducts CMC joint of thumb |
|
|
Lumbricals (ulnar side)Intrinsic muscle innervated by the ulnar nerve |
ORIGIN: tendons of flexor digitorum profundus for digits IV and V INSERTION: radial side of digits IV and V into extensor expansion FUNCTION: MCP flexion and extension of IP joints of digits I and V |
|
|
Palmar InterosseiIntrinsic muscle innervated by the ulnar nerve |
ORIGIN: (1st palmar) - ulnar surfact of 2nd metacarpal; (2nd palmar) - radial surfact of 4th metacarpal;(3rd palmar) - radial surfact of 5th metacarpal INSERTION: (1st palmar) - ulnar surfact of 2nd proximal phalanx (2nd palmar) - radial surface of 4th proximal phalanx (3rd palmar) - radial surface of 5th proximal phalanx FUNCTION: adduction and assistance with MCP flexion and extension of IP joints of digits II thru V |
|
|
Dorsal Interossei Intrinsic muscle innervated by the ulnar nerve |
ORIGIN: all four muscles aarise from the adjacent sides of the metacarpals INSERTION: proximal phalanx on the radia aspect of the index, radial and ulnar sides of middle finger, and ulnar side of ring finger (all into extensor digitorum) FUNCTION: abduction and assists with MCP flexion & ext. of IP joints of digits II through V |
