Muscles of the Wrist Flashcards
What are the attachments of Flexor Carpi Ulnaris?
O: humeral head – medial epicondyle,
ulnar head – medial border of olecranon, upper 2/3rds of posrterior border of ulna
I: pisiform – extends to hook of hamate and base of 5th metacarpal
What are the attachments of Flexor Carpi Radialis?
O: medial epicondyle of humerus
I: palmar surfaces of the bases of the 2nd and 3rd metacarpals
What are the attachments of Palmaris Longus?
O: medial epicondyle of humerus
I: superficial flexor retinaculum
What is the nerve supply for Flexor Carpi Ulnaris?
Ulnar nerve C7 C8
What is the nerve supply for Flexor Carpi Radialis
Median nerve C6 C7
What is the nerve supply for Palmaris Longus
Median Nerve C8
What is the action of Flexor Carpi Ulnaris
Wrist flexion and ulnar deviation
What is the action of Flexor Carpi Radialis
Flexes the wrist, radial deviation, aid pronation, help flex the elbow
What is the action of Palmaris Longus
Weak wrist flexion
What is the function of Flexor carpi ulnaris?
writing
What is the function of Flexor carpi radialis?
undoing buttons
What is the functions of palmaris longus
undoing buttons
What are the attachments of extensor carpi radialis longus?
O: lower 1/3rd lateral supracondylar line of humerus and adjacent intramuscular septum
I: posterior surface of base of 2nd metacarpal
what is the nerve supply of extensor carpi radialis longus?
radial nerve C6, C7
what is the action of extensor carpi radialis longus?
extends and radial deviates wrist