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Posterior Antebrachial Muscles
First half of Lab 5
10
Anatomy
Graduate
02/25/2009

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Cards

Term
[image]
Definition
Brachioradialis
 
O:  Lateral supracondylar ride of humerus
 
I:  Styloid process of radius
 
A:  Flexion of elbow with forearm in neutral position
 
N:  Radial nerve proper (C5-T1)
 
B:   Radial artery
Term
[image]
Definition
Extensor Carpi Radialis Longus
 
O:  Lateral supracondylar ride and lateral epicondyle of humerus
 
I:  Base of 2nd metacarpal
 
A:  Extension, radial deviation of wrist
 
N:  Radial nerve proper (C5-T1)
 
B:  Radial artery 
Term
[image]
Definition
Extensor Carpi Radialis Brevis
 
O:  Lateral epicondyle of humerus
 
I:  Base of third metacarpal
 
A:  Extension of wrist
 
N:  Deep radial nerve (C5-T1)
 
B:  Radial artery 
Term
[image]
Definition
Extensor Digitorum
 
O:  Lateral epicondyle of humerus
 
I:  Extensor expansion of 4 fingers
 
A:  Extension of proximal phalanges of 4 fingers at MP joint, assists extension of the wrist
 
N:  Deep radial nerve (C5-T1)
 
B:  Radial artery
Term
[image]
Definition
Extensor Digiti Minimi
 
O:  Lateral epicondyle of the humerus
 
I:  Extensor expansion of little finger
 
A:  Extension of proximal finger at MP joint, assists wrist extension
 
N:  Deep radial nerve
 
B:  Radial artery 
Term
[image]
Definition
Extensor Carpi Ulnaris
 
O:  Lateral epicondyle of humerus, posterior proximal ulna
 
I:  Base of the 5th metacarpal
 
A:  Extension, ulnar deviation of the wrist
 
N:  Deep radial nerve (C5-T1)
 
B:  Radial artery 
Term
[image]
Definition
Supinator
 
O:  Lateral epicondyle of humerus, annular and radial collateral ligaments, proximal ulna at supinator crest
 
I:  Lateral surface of proximal 1/3 of radius between anterior and posterior oblique lines
 
A:  Supination of forearm
 
N:  Deep radial nerve (C5-T1)
 
B:  Posterior interosseus artery (from ulnar artery) 
Term
[image]
Definition
Extensor Indicis
 
O:  Posterior ulna and interosseus membrane
 
I:  Extensor expansion of index finger
 
A:  Extension of proximal phalanx of index finger at MP joint, assists wrist extension
 
N:  Deep radial nerve (C5-T1)
 
B:  Posterior interosseus artery (from ulnar artery)
Term
[image]
Definition
Abductor Pollicus Longus
 
O:  Posterior radius and ulna, interosseus membrane
 
I:  Base of 1st metacarpal
 
A:  Abduction of 1st metacarpal of thumb at CM joint, assists radial deviation
 
N:  Deep radial nerve
 
B:  Posterior interosseus artery (from ulnar artery)
Term
[image]
Definition
Extensor Pollicus Brevis
 
O:  Posterior radius, interosseus membrane
 
I:  Base of proximal phalanx of thumb
 
A:  Extension of proximal phalanx of thumb at MP joint, assists radial deviation
 
N:  Deep radial nerve (C5-T1)
 
B:  Posterior interosseus artery (from ulnar artery)
 
Extensor Pollicus Longus
 
O:  Posterior ulna and interosseous membrane- middle 1/3
 
I:  Base of distal phalanx of thumb
 
A:  Extension of distal phalanx of thumb at IP joint, assists radial deviation
 
N:  Deep radial nerve (C5-T1) 
 
B:  Posterior interosseus artery (from ulnar artery)
 
 
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