Intronsic Muscles Of The Antibrachium Flashcards
Extensor carpi radialis
Origin: lateral epicondyle of humerus
Insertion: 2nd and 3rd bone of carpus
Action: extend carpus and flex elbow
Common digital extensor
Origin: lateral epicondyle of humerus and elbow ligaments
Insertion: proximal end of every phalange
Action: extend digits and flex elbow
Lateral digital extensor
Origin: lateral epicondyle of humerus and elbow ligaments
Insertion: digits 3-4
Action: extend digits and flex elbow
Extensor carpi ulnaris
Origin: lateral epicondyle of humerus and ulna border
Insertion: metacarpus
Action: extensor of carpus, flexor of elbow
Extensor carpi ulnaris
Origin: lateral epicondyle humerus and ulna border
Insertion: metacarpus
Action: extensor of carpus and flex elbow
Flexor carpi ulnaris
Origin: medial epicondyles of humerus and some heads on ulna
Insertion: accessory carpal bone
Action: flex carpus
Superficial digital flexor
Origin: medial epicondyles of humerus
Insertion: second phalanges of 2-5
Action: flex digits +carpus, extend elbiw
Deep digital flexor
Origin: ulna, radius, humerus epicondyle (three heads)
Insertion: flexor retinaculum
Flexor carpi radialis
Origin: medial epicondyle of humerus
Insertion: 2-3 metacarpals
Action: flex carpus and extend elbow
Teres supranator
Origin: lateral epicondyle of humerus
Insertion: radius
Action: supernate
Teres pronator
Origin: medial epicondyle of the humerus
Insertion: radius
Action: pronate
Abductor digiti one Longus
Origin: ulna and partly radius
Insertion: first metacarpal bone
Action: abduct first digit
Extensor digiti one et digiti two
Origin: body of radius
Insertion: 1st + 2nd digit
Action: extend 1st + 2nd digit
Pronator quadratus
Origin: ulna
Insertion: radius
Action: pronate
