Muscles of Upper Arm Flashcards
Action of biceps brachii
Flexes arm at elbow and shoulder
Supination of forearm
Action of coracobrachialis
Flexes arm at shoulder
Weak adduction
Action of brachialis
Flexion at elbow
Innervation of muscles of upper arm
Musculocutaenous
Innervation of muscles of the anterior compartment of the forearm
Median nerve
Except FCU and medial half of FDP - ulnar nerve
Innervation of posterior compartment muscles
Radial nerve
Action of pronator teres
Pronation of forearm
Action of FCR
Flexion of wrist
Abduction of wrist
Action of palmaris longus
Flexion of wrist
Action of FCU
Flexion of wrist
Adduction of wrist
Actions of FDS
Flexion of MCP and PIP joints of four fingers
Flexion of wrist
Actions of flexor digitorum profundus
Flexion of DIP joint of fingers
Flexion of MCP joint of fingers
Flexion of wrist
Actions of flexor pollicis longus
Flexion at MCP and IP joints of thumb
Action of pronator quadratus
Pronation of forearm
Action of brachioradialis
Flexion of elbow
Actions of ECRL&B
Extension of wrist
Abduction of wrist
Action of extensor digitorum
Extension of four fingers at MCP and IP joints
Action of extensor digiti mimini
Extension of little finger
Contributes to extension of wrist
Action of extensor carpi ulnaris
Extension and adduction of wrist
Action of supinator
Supination of forearm
Action of abductor pollicis longus
Abducts thumb
Action of extensor pollicis brevis
Extends MCP and carpometacarpal joints of thumb
Action of extensor pollicis longus
Extends all joints of thumb - CMC, MCP and IP joints
