Flexor region of forearm

Pronator Teres - Origin

Ulnar Head: Coronoid Process; Humeral Head: Medial Epicondyle of Humerus

Pronator Teres - Insertion

Middle of lateral surface of radius

Pronator Teres - Peripheral Innervation

Median Nerve

Pronator Teres - Action

Pronates forearm and flexes elbow

Flexor Carpi Radialis - Origin

Medial Epicondyle of Humerus

Flexor Carpi Radialis - Insertion

Base of 2nd metacarpal

Flexor Carpi Radialis - Peripheral Innervation

Median Nerve

Flexor Carpi Radialis - Action

Wrist flexion and radial deviation

Flexor Carpi Ulnaris - Origin

Humeral Head: Medial epicondyle of humerus; Ulnar Head: Olecranon and posterior ulna

Flexor Carpi Ulnaris - Insertion

Pisiform, hook of hamate and 5th metacarpal

Flexor Carpi Ulnaris - Peripheral Innervation

Ulnar Nerve

Flexor Carpi Ulnaris - Action

Wrist flexion and ulnar deviation

Palmaris Longus - Origin

Medial Epicondyle of Humerus

Palmaris Longus - Insertion

Flexor retinaculum and palmar aponeurosis

Palmaris Longus - Peripheral Innervation

Median Nerve

Palmaris Longus - Action

Wrist flexion, tenses palmar aponeurosis

Palmaris Brevis - Origin

Medial border of palmar aponeurosis & skin on medial border of hand

Palmaris Brevis - Insertion

Skin over hypothenar eminence

Palmaris Brevis - Peripheral Innervation

Ulnar Nerve

Palmaris Brevis - Action

Aids palmar grip by wrinkling skin of hypothenar eminence and deepens hollow of palm; protects and covers ulnar nerve and artery

Flexor Digitorum Superficialis - Origin

Humeroulnar Head: Medial epicondyle of humerus; Radial Head: Superior portion of anterior border of radius

Flexor Digitorum Superficialis - Insertion

Shafts of middle phalanges digits 2-5

Flexor Digitorum Superficialis - Peripheral Innervation

Median Nerve

Flexor Digitorum Superficialis - Segmental Innervation

C7, C8, T1

Flexor Digitorum Superficialis - Action

Flexion of MCP and PIP joints of digits 2-5; strongest at PIP joints

Flexor Digitorum Profundus - Origin

Proximal part of medial and anterior surfaces of ulna and interosseus membrane

Flexor Digitorum Profundus - Insertion

Medial Part: bases of distal phalanges of 4th and 5th digits; Lateral Part: bases of distal phalanges of 2nd and 3rd digits

Flexor Digitorum Profundus - Peripheral Innervation

Lateral Half: Median Nerve (anterior interosseous); Medial Half: Ulnar Nerve

Flexor Digitorum Profundus - Segmental Innervation

C8, T1

Flexor Digitorum Profundus - Action

Flexion of MCP, PIP, and DIP joints of digits 2-5; only flexor at DIP joints

Flexor Pollicis Longus - Origin

Anterior surface of radius and adjacent interosseus membrane

Flexor Pollicis Longus - Insertion

Base of distal phalanx of thumb

Flexor Pollicis Longus - Peripheral Innervation

Median Nerve (anterior interosseous)

Flexor Pollicis Longus - Action

1st IP joint flexion

Pronator Quadratus - Origin

Distal 1/4 of anterior surface of Ulna

Pronator Quadratus - Insertion

Distal 1/4 of anterior surface of radius

Pronator Quadratus - Peripheral Innervation

Median Nerve (anterior interosseous)

Pronator Quadratus - Action

Pronates forearm; deep fibers bind radius and ulna together