SUPERFICIAL MUSCLES
(1) Flexor Carpi Radiallis
Origin
Medial epicondyle of humerus
Insertion
Anterior aspect of base of second metacarpal, base of third metacarpal and trapezial tuberosity
Artery Supply
Radial Artery
Nerve Supply
Median Nerve
Movement
Flexion and Abduction of hand at wrist
Associated Pathology
Flexor Carpi Radiallis Tendonitis
(2) Palmaris longus
Origin
Medial epicondyle of humerus
Insertion
Central part of flexor retinaculum and lower part of palmar aponeurosis
Artery Supply
Ulnar Artery
Nerve Supply
Median Nerve
Movement
Flexion of Wrist
Associated Pathology
Palmaris Longus Tendon Rupture
It is also used in tendon graft
(3) Flexor Digitorum Superficialis
Origin
Muscle has two heads – the humeroulnar and radial
Medial epicondyle of humerus and anterior portion of radius
Insertion
It inserts into the anterior margin of bases of the middle phalanges of the medial four digits
Artery Supply
Ulnar Artery
Nerve Supply
Median Nerve
Movement
Fingers Flexion mainly of Proximal Interphalangeal joint
Associated Pathology
Flexor Digitorum Superficialis tendon rupture occurs in rugby players
(4) Flexor Carpi Ulnaris
Origin
Humeral head at Medial epicondyle of humerus
Ulnar head at Medial aspect of olecranon process of ulna
Insertion
Pisiform, Hook of Hamate and base of 5th metacarpal
Artery Supply
Ulnar Artery
Nerve Supply
Ulnar Nerve
Movement
Flexion and Abduction of hand at wrist
Associated Pathology
Cubital tunnel syndrome
(5) Pronator Teres
Origin
Humeral head at medial supracondylar ridge of humerus
Ulnar head at coronoid process of ulna
Insertion
Middle of lateral surface of body of radius
Artery Supply
Ulnar And Radial Artery
Nerve Supply
Median Nerve
Movement
Pronation of forearm and flexion of elbow
Associated Pathology
Pronator Teres Syndrome
Deep Muscles
(1) Flexor Digitorum Profundus
Origin
upper 3/4 of the anterior and medial surfaces of the body of the ulna, interosseous membrane and deep fascia of the forearm
Insertion
Base of Distal Phalanges of fingers
Artery Supply
Anterior interosseous Artery
Nerve Supply
Anterior Interosseus Nerve and Ulnar Nerve
Movement
Flexor of Wrist, Metacarpophalangeal joint and Interphalangeal joint
Associated Pathology
Jersey Finger
Linburg – Comstock Syndrome
(2) Flexor Pollicis Longus
Origin
Middle 2/4th of the anterior surface of the radius and the interosseous membrane
Insertion
Base of Distal Phalanx of Thumb
Artery Supply
Anterior Interosseous Artey
Nerve Supply
Anterior Interosseous Nerve
Movement
Thumb Flexion
Associated Pathology
Linburg-Comstock Syndrome
FPL tendon rupture
(3) Pronator Quadratus
Origin
Medial and Anterior Surface of Ulna
Insertion
Lateral and Anterior Surface of Radius
Artery Supply
Anterior Interosseous Artey
Nerve Supply
Anterior Interosseous Nerve
Movement
Pronation of forearm
Associated Pathology
Overuse injury, Overactive and Short Pronator Quadratus