Antebrachium Flashcards
Extensor carpi radialis: Insertion
Extensor carpi radialis
Insertion: metacarpal tuberosities (dorsal aspect) of MC II and III
Extensor carpi radialis: Action
Extensor carpi radialis
Action: extend carpus
Common digital extensor: Origin
Common digital extensor
Origin: lateral epicondyle of humerus
Common digital extensor: Insertion
Common digital extensor
Insertion: extensor processes of the distal phalanx of digits 2-5
Common digital extensor: Action
Common digital extensor
Action: extends the joints of the four principal digits
Extensor carpi radialis: Origin
Extensor carpi radialis
Origin: lateral supracondylar crest of humerus
Lateral digital extensor: Origin
Lateral digital extensor
Origin: lateral epicondyle of the humerus
Lateral digital extensor: Insertion
Lateral digital extensor
Insertion:
1) extensor processes of the distal phalanx of digits III- V
2)proximal ends of phalanges of same digits
Lateral digital extensor: Action
Lateral digital extensor
Action: extend the joints of digits III- V
Ulnaris lateralis: Origin
Ulnaris lateralis
Origin: lateral epicondyle of the humerus
Ulnaris lateralis: Insertion
Ulnaris lateralis
Insertion:
1) lateral aspect of the proximal end of the MC V
2) accessory carpal bone
Ulnaris lateralis: Action
Ulnaris lateralis
Action: abduct and flex carpus
Supinator: Origin
Supinator
Origin: lateral epicondyle of the humerus
Supinator: Insertion
Supinator
Insertion: cranial aspect of the proximal radius
Supinator: Action
Supinator
Action: supination
Pronator teres: Origin
Pronator teres
Origin: medial epicondyle of the humerus
Pronator teres: Insertion
Pronator teres
Insertion: medial border of radius
Pronator teres: Action
Pronator teres
Action: pronation
Abductor pollicis longus: Origin
Abductor pollicis longus
Origin:
1) lateral and cranial border of the ulna
2) interosseus membrane btw radius and ulna
Abductor pollicis longus: Insertion
Abductor pollicis longus
Insertion: proximal end of metacarpal I
Abductor pollicis longus: Action
Abductor pollicis longus
Action: abduct digit I
Flexor carpi radialis: Orgin
Flexor carpi radialis
Origin:
1) medial epidcondyle of the humerus
2) medial border of radius
Flexor carpi radialis: Insertion
Flexor carpi radialis
Insertion: plamar surface of proximal MC II and III
Flexor carpi radialis: Action
Flexor carpi radiallis
Action: flex carpus
Deep digital flexor: Origin
Deep digital flexor Origin: 1) medial epicondyle of the humerus 2) ulna 3)radius
Deep digital flexor: Insertion
Deep digital flexor
Insertion: flexor tubercle of the distal phalanx of each digit
Deep digital flexor: Action
Deep digital flexor
Action: flex digits
Pronator quadratus: Action
Pronator quadratus
Action: pronate the antibrachium
