Muscle Chart: Flexor-Pronator Group - Superficial Layer

Question 1

Pronator Teres

Origin, Insertion, Innervation, Blood Supply

Answer 1

Origin: Humeral Head — Medial epicondyle; Ulnar Head — Coronoid process

Insertion: Middle of the lateral surface of the radius

Innervation: Median nerve (C6, C7)

Blood Supply: Ulnar artery

Question 2

Pronator Teres Movements

Answer 2

Pronates forearm and assists in elbow flexion

Question 3

Flexor Carpi Radialis (FCR)

Origin, Insertion, Innervation, Blood Supply

Answer 3

Origin: Medial epicondyle of the humerus

Insertion: Base of metacarpal 2 and 3

Innervation: Median nerve (C6, C7)

Blood Supply: Ulnar artery

Question 4

Flexor Carpi Radialis (FCR) Movements

Answer 4

Flexes and radially deviates

Question 5

Palmaris Longus

Origin, Insertion, Innervation, Blood Supply

Answer 5

Origin: Medial epicondyle of humerus

Insertion: Apex of palmar aponeurosis and the distal half of the flexor retinaculum

Innervation: Median nerve (C7, C8)

Blood Supply: Ulnar artery

Question 6

Palmaris Longus Movements

Answer 6

Tenses the palmar aponeurosis and flexes the hand at the wrist

Question 7

Flexor Carpi Ulnaris (FCU)

Origin, Insertion, Innervation, Blood Supply

Answer 7

Origin: Humeral head — medial epicondyle; Ulnar head: olecranon and the posterior border of the ulna

Insertion: Pisiform, hook of the hamate and 5th metacarpal

Innervation: Ulnar collateral branch of the median nerve (C7); Ulnar nerve (C7, C8)

Blood Supply: Ulnar artery

Question 8

Flexor Carpi Ulnaris (FCU) Movements

Answer 8

Flexes and adducts the hand at the wrist, weak elbow flexor