UL- Hand Flashcards
muscles that produce FLEXION (6)
- Flexor Carpi Ulnaris
- Flexor Carpi Radialis
- F. Digitorum Profundus
- F. Digitorum Superficialis
- F. Pollicis Longus
- Palmaris Longus
Flexor Carpi ULNARIS
Origin:
- medial epicondyle
Insertion
- hook of hamate
Actions:
1. Flexion
2. Ulnar deviation
3. stabilises pisiform furing abduction of 5th finger
Nerve
- Ulnar nerve, c7, c8
Flexor Carpi RADIALIS
Origin:
- medial epicondyle
Insertion
- base of 2nd & 3rd metacarpal (plantar surface)
Actions:
1. Flexion
2. Radial deviation
Nerve:
- median nerve c6,7
Palmaris longus
Origin:
- medial epicondyle
Insertion:
-flexor retinaculum
(superficial surface)
Action:
1.flexion
2.tightens palmar fascia
Nerve:
- median nerve c8
Flexor Digitorum PROFUNDUS
Origin:
- proximal 3/4 of medial ulna
Insertion:
-palmar aspect of distal phalanx base
Action:
1. flexion of distal Inter Phalangeal Joint
2. flexion of wrist joint
Nerve:
- median and ulnar nerve (c7,c8,t1)
Flexor Digitorum Superficialis
Origin:
-medial epicondyle
Insertion:
-under profundus tendon
Action:
1. flexion of MCP joint
2.flexion of prox IP joint
Nerve:
- median nerve c7, c8, t1
Flexor Pollicis Longus
Origin:
- anterior surface of radius
Insertion:
-base of distal phalanx of thumb
(palmar surface)
Action:
1.flex thumb IP joint
2. flex thumb MCP joint
Nerve:
- median nerve c8, t1
What are the extensors of the hand
“Extensor…”
CCC PPP DID
- Carpi Radialis Longus
- Carpi Radialis Brevis
- Carpi Ulnaris
- Digitorum Indicis
- Digiti Minimi
- Pollicis Longus
- Pollicis Brevis
- Pollicis Longus
Insertions of Extensors Carpis …. (3)
Base of …
2nd (Radialis Longus)
3rd (Radialis Brevis)
5th (Ulnaris)
… Metatarsal
Extensor Carpi Radialis Longus
Origin:
- distal 1/3 lateral supracondylar ridge
Insertion:
- dorsal surface base of 2nd metatarsal
Action:
1. Wrist extension
Nerve:
- radial nerve c6,7
Extensor Carpi Radialis Brevis
Origin:
- LATERAL epicondyle
Insertion:
- base of 3rd metacarpal
Action:
1. Wrist extension
Nerve:
- radial nerve, c6,7
Extensor Carpi ULNARIS
Origin:
- LATERAL epicondyle
Insertion:
-base of 5th metacarpal
Action:
1. wrist extension
Nerve:
- radial nerve c7,8
Extensor Digitorum
Origin:
- LATERAL epicondyle
Insertion:
- middle phalanx
Action:
1. MCP extension
Nerve:
- radial nerve c7,8
Extensor Digitorum Minimi
Origin:
- LATERAL epicondyle
Insertion:
- extensor mechanism of little finger
Action:
1. Extends little finger
Nerve:
- Radial nerve c7,8
Extensor Indicis
Origin:
- posterior surface of ulna
Insertion:
- proximal phalanx on index finger
Action:
1. Extends index finger
Nerve:
-Radial nerve c7,8
Extensor Pollicis Longus
Origin:
- middle 1/3 of posterior surface of ulna
Insertion:
- base of distal phalanx of thumb
Action:
1. thumb joint extension
Nerve:
- radial nerve c7,8
Extensor Pollicis Brevis
Origin:
- posterior surface of radius
Insertion:
- base of proximal phalanx of thumb
Action:
1. thumb extension (MCP, CMC joints)
Nerve:
- radial nerve c7,8
Abductor Pollicis Longus
Origin:
- middle 1/2 of posterior surface of radius
Insertion:
- base 1st metacarpal
Action:
1.thumb extension
2.thumb abduction
Nerve:
- radial nerve c7,8
Flexor Pollicis Brevis
Origin:
- Superficial head= trapezium bone
- Deep head= capitate bone
Insertion:
- proximal phalanx
(lateral aspect)
Action:
1. Thumb flexion
Nerve:
- median and ulnar nerve (C8, T1)
Abductor Pollicis Brevis
Origin:
- trapezium bones
Insertion:
- proximal phalanx
Action:
1.thumb abduction
Nerve:
-median nerve c8, t1
Adductor Brevis
Origin:
- Transverse head= 3rd metacarpal
- Oblique bone= capitate bone
Insertion:
-proximal phalanx
Action:
1. thumb adduction
Nerve:
- ulnar nerve c8, t1
Muscles involved in ULNAR DEVIATION
Flexor Carpi Ulnaris
Extensor Carpi Ulnaris
muscles involved in radial deviation
Flexor Carpi Radialis
Extensor Carpi Radialus LONGUS
Extensor Carpi Radialis Brevis
