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Superficial Flexor Forearm Muscles
Superficial Muscles of the Forearm
5
Anatomy
Post-Graduate
11/13/2011

Additional Anatomy Flashcards

 


 

Cards

Term
Pronator Teres
Definition

Origin: Ulnar Head- coronoid process

                Humeral Head-  Medial epicondyle via common flexor tendon.

 

Insertion: Middle of convexity of lateral surface of radius

 

Action: Pronation ( when more speed and power is needed) and flexion of forearm at elbow 

 

Inervation: Median n. (C6, C7)


Term

Flexor Carpi Radialis

(FCR)

 

 

 

Definition

Origin: Medial epicondyle via common flexor tendon.


Insertion: Base of 2nd metacarpal.


Action: Flexion and radial deviation of the hand ( when acting alone); forearm flexion.


Inervation: Median n. (C6, C7)

Term
Palmaris Longus
Definition

Origin: Medial epicondyle via common flexor tendon.


Insertion: Distal 1/2 of flexor retinaculum and apex of palmar aponeurosis.


Action: Flexion of hand at wrist and tenses palmar aponeurosis.


Inervation: Median n. (C7, C8)

Term

Flexor Carpi Ulnaris

(FCU)

 

Definition

Origin: Humeral head- Medial epicondyle via common flexor tendon.

                Ulnar head- Olecranon and post. border via aponeurosis.

Insertion: Pisiform, hook of hamate and 5th metacarpal.

Action: Flexion and ulnar deviation of the hand (when acting alone); forearm flexion.

Inervation: Ulnar n. (C7, C8).

Blood Supply: Ulnar a.

Term

Flexor Digitorum Superficialis

 (FDS)

(Intermediate Layer)

Definition

Origin: Humeral head- Med. epicondyle via common flexor tendon and coronoid process.

               Radial head- Superior 1/2 ant. border.

Insertion: Shafts of middle phalanges of medial 4 digits via split tendon.

Action: Flexion of PIPs; strong flexion of MCPs.

Inervation: Median n. (C7, C8, T1)

Blood Supply: Ulnar and radial arteries.

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