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
