Muscles of the Forearm (Anterior/Posterior) Flashcards
Extensor Indicis (Origin & Insertion)
O: Distal post ulna & interosseus membrane
I: Ext expansion of digit II
Extensor Indicis (Actions)
Extends dig II
Helps extends carpus
Extensor Indicis (Nerve & Artery)
N: Deep radial N
A: Post interosseus A
Extensor Pollicis Longus (Origin & Insertion)
O: Middle post ulna & interosseus memebrane
I: Through radial dorsal tubercle to base of distal phalanx of pollex
Extensor Pollicis Longus (Actions)
Extends pollex
Helps extends carpus
Extensor Pollicis Longus (Nerve & Artery)
N: Deep radial N
A: Post interosseus A
Abductor Pollicis Longus (Origin & Insertion)
O: Middle post antebrachium
I: Base of Mc I
Abductor Pollicis Longus (Actions)
Abducts & extends pollex
Abducts carpus
Abductor Pollicis Longus (Nerve & Artery)
N: Deep radial N
A: Post interosseus A
Palmaris Longus (Origin & Insertion)
O: Common flexor tendon of med epicondyle
I: Palmar aponeurosis & distal flexor retinaculum
Palmaris Longus (Actions)
Flexes carpus
Helps pronate antebrachium & flex elbow
Palmaris Longus (Nerve & Artery)
N: median N
A: Radial, ulnar, & ant interosseus Aa
Extensor Carpi Radialis Longus (Origin & Insertion)
O: Lat supracondylar ridge of humerus
I: base of Mc II
Extensor Carpi Radialis Longus (Actions)
Extends carpus
Abducts carpus
Extensor Carpi Radialis Longus (Nerve & Artery)
N: radial N
A: Post interosseus A
Extensor Carpi Radialis Brevis (Origin & Insertion)
O: Lat epicondyle of humerus
I: Base of Mc III
Extensor Carpi Radialis Brevis (Actions)
Extends carpus
Abducts carpus
Extensor Carpi Radialis Brevis (Nerve & Artery)
N: Deep radial N
A: Post interosseus A
Extensor Digitorium (Origin & Insertion)
O: Lat epicondyle of humerus
I: Extensor expansions of digits II-IV & into distal tendon of ext. dig minimi
Extensor Digitorium (Actions)
Prime mover for extending carpus
Extends dig. II-V