Exam 2 Flashcards
Origin brachioradialis
Lateral supracondylar ridge of humerus
Insertion of brachioradialis
Styloid process radius
Action or brachioradialis
Flexes forearm, can act as supination or pronator
Origin of extensor carpi radialis longus
Lateral epincondyle of humerus
Insertion of extensor carpi radialis longus
Second metacarpal
Origin of Extensor carpi radialis brevis
Lateral epicondyle of humerus
Insertion of Extensor carpi radialis brevis
Third metacarpal
Actions of Extensor carpi radialis brevis
Extends hand abducts hand
Extensor digitorum origin
Lateral epicondyle of humerus
Insertion of Extensor digitorum
Middle and distal phalanges of digit 2-5
Actions of Extensor digitorum
Extends digit 2-5. Extends hand at wrist joint
Origin Extensor digiti minimi
Lateral epicondyle humerus
Insertion Extensor digiti minimi
Proximal phalanx digit five
Action Extensor digiti minimi
Extend digit 5
Origin Extensor carpi ulnaris
Lateral epicondyle of humerus
Insertion Extensor carpi ulnaris
Shaft of ulna
Insertion of Extensor carpi ulnaris
5th metacarpal
Action of Extensor carpi ulnaris
Extends hand, adducts hand
Flexi carpi radialis origin
Medial epicondyle
Flexor carpi radlalis insertion
Second metacarpal
Actions of flexor carpi radialis
Abduction of hand
Prime mover for flexion at wrist joint
Pronator teres origin
Medial epicondyle & coronoid process of ulna
Pronator teres insertion
Pronator ridge
Actions of pronator teres
Pronation of forearm at proximal radioulnar joint & assists in flexion of forearm
Nerve supply of pronator teres
Median nerve
Palmaris longus origin
Medial epicondyle
Palmaris longus insertion
Palmar apneurosis
Actions of palmar apneurosis
Weak flexion at wrist joint & tightens palmar aponeurosis for grip