Wrist Flexor Muscles Flashcards
Distal attachment Flexor Carpi Ulnaris
Attaches to and invests pisiform
Tendon prolongs to reach hook of hamate and base of 5th metacarpal, by pisohamate and pisometacarpal ligaments
Proximal attachment Flexor Carpi Ulnaris
Humeral head- medial epicondyle of humerus via common flexor tendon
Ulnar head- medial border of olecranon process and from proximal two thirds of posterior border of ulna
Nerve supply FCU
Ulnar Nerve C7, C8
Proximal attachment Flexor Carpi Radialis
Medial epicondyle of the humerus, via common flexor tendon and the antebrachial fascia
Distal attachment Flexor Carpi Radialis
Palmar surface of base of 2nd metacarpal
Sends a slip to base of 3rd metacarpal
Nerve supply FCR
Median Nerve C6, C7
Proximal attachment Flexor Digitorum Superficialis
Medial or humeral head- medial epicondyle of humerus via common flexor tendon.
Anterior part of ulnar collateral ligament of elbow and tubercle on medial aspect of coronoid process
Radial head- oblique line on proximal two thirds of anterior border of radius, extending from radial tuberosity to insertion of Pronator Teres
Distal attachment Flexor Digitorum Superficialis
Sides of the middle phalanx of each of the fingers
Nerve supply FDS
Median Nerve C7, C8, T1
Proximal attachment Flexor Digitorum Profundus
Medial aspect of coronoid process of the ulna
Proximal three quarters of the anterior and medial aspects of the ulna
Ulnar side of Middle third of anterior surface of interosseous membrane and an aponeurosis attaching to FCU to the posterior border of the ulna
Distal attachment Flexor Digitorum Profundus
Each of the four tendons attaches to the base of the palmar surface of the distal phalanx of the fingers
Nerve supply FDP
Lateral part (index and middle fingers)- Anterior Interosseous branch of Median Nerve C7, C8, T1 Medial part (ring and little fingers)- Ulnar Nerve C8, T1
Proximal attachment Flexor Pollicis Longus
Anterior aspect of radius between radial tuberosity and insertion of Pronator Quadratus
Adjacent part of interosseous membrane
Occasionally a small slip from medial border of coronoid process of ulna
Distal attachment Flexor Pollicis Longus
Palmar surface of base of distal phalanx of thumb
Nerve supply FPL
Anterior Interosseous branch of Median Nerve C8, T1