Week 5 - The Anterior Compartment of the Forearm Flashcards
Which muscle sits in the intermediate compartment of the anterior forearm?
Flexor digitorum superficialis
Which muscles make up the deep compartment of the anterior forearm?
Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus
Which nerve innervates the majority of muscles in the anterior forearm, and give its nerve roots?
The median nerve, C5 - T1
Which nerve supplies just 2 muscles in the anterior forearm?
The ulnar nerve, C8/T1
Which muscles in the anterior forearm are innervated by the ulnar nerve?
Flexor carpi ulnaris
Medial side of flexor digitorum profundus
What are the actions of flexor carpi ulnaris?
Flexion of the hand
Adduction of the hand
Which muscles in the anterior forearm all flex the hand?
Flexor carpi ulnaris
Flexor carpi radialis
Palmaris longus
What is the action of palmaris longus?
Flexes the hand
What two actions do flexor carpi radialis perform?
Flexion of the wrist
Abduction of the wrist
What does pronator teres do?
Pronate the forearm (who’d have guessed?)
Which two muscles of the anterior forearm both cause pronation?
Pronator teres
Pronator quadratus
What muscle in the anterior forearm is responsible for flexing the 4 fingers at the MCP and proximal IP joints?
Which muscle therefore flexes at the distal IP joints?
Flexor digitorum superficialis
Flexor digitorum profundus
What is the action of flexor pollicis longus?
Flexes the IP joint of the thumb
Which muscles make up the superficial compartment of the anterior forearm?
Flexor carpi ulnaris
Palmaris longus
Flexor carpi radialis
Pronator teres
