Muscles Of The Forearm

Question 1

Define

CFO - common flexor origin.

CEO - common extensor origion

Answer 1

CFO- medial epicondyle of the humerus

CEO- lateral epicondyle of humerus

Question 2

Numer of muscles in forearm

And the compartments

Answer 2

19 muscles

8 Anterior and 11 posterior

Anterior 4 superfisial, 1 intermettient, 3 deep

Posterior

Question 3

What nerve innervates the CF- common flexors / anterior forearm muscles

Answer 3

Median nerve

Except for FCU- flexi carpi ulnaris
FDP

Supplied buy ulnar nerve

Question 4

Anterior forearm muscles

Superficial muscle

Intermediate

Deep muscle

Answer 4

Superficial

Pronator teres PT
Flexor carpi radialis FCR
Palmaris longus PL
Flexor carpi ulnaris FCU

Intermediate

Flexor digitorum superficialis FDS

Deep muscles (dont cross elbow joint)

Flexor digitorum profundus FDP
Flexor pollicis longus FPL
Pronator quadratus PQ

Question 5

Posterior muscle of forearm

What is CEO

Action?

Innvervated

Answer 5

Lateral epicondyle of humerus

Extension of wrist and fingers
Supinate forearm

Radial nerve

Question 6

Posterior forearm muscles

Superficial

Deep

Answer 6

Superficial muscles

Brachioradialis
Extensor carpi radialis longus ECRL
Extensor carpi radialis brevis ECRB
Extensor digitorum ED 
Extensor digit minimi EDM
Extensor carpi ulnaris ECU

Deep muscles

Supinator 
Abductor pollicis longus APL
Extensor pollicis brevis  EPB
Extensor pollicis longus EPL
Extensor indicis EI