MSS Week 9 Anterior Compartment of the Hand

Question 1

Pronator Teres

Origin
Insertion
Innervation
Action

Answer 1

Origin: Medial epicondyle and coronoid process of the ulna

Insertion: Midshaft of the radius

Innervation: Medial Nerve

Action: Pronation of the Forearm

Question 2

Flexor Carpi Radialis

Origin
Insertion
Innervation
Action

Answer 2

Origin: Medial Epicondyle

Insertion: Base of metacarpals 2 and 3

Innervation: Medial Nerve

Action: Flexion and Abduction of the wrist

Question 3

Palamaris Longus

Origin
Insertion
Innervation
Action

Answer 3

Origin: Medial Epicondyle

Insertion: Palmar Aponeurosis

Innervation: Medial Nerve

Action: Flexion of the wrist

Question 4

Flexor Carpi Ulnaris

Origin
Insertion
Innervation
Action

Answer 4

Origin: Medial Epicondyle

Insertion: Pisiform carpal bone

Innervation: Ulnar Nerve

Action: Flexion and Adduction of the wrist

Question 5

Flexor Digitorum Superficialis

Origin
Insertion
Innervation
Action

Answer 5

Origin: Medial Epicondyle

Insertion: Middle phalanges of the four fingers ( 4 tendons)

Innervation: Median Nerve

Action: Flexion of the Wrist

Question 6

Flexor Digitorum Profundus

Origin
Insertion
Innervation
Action

Answer 6

Origin: Anterior and medial Ulna

Insertion: Distal phalanges of the four fingers

Innervation: Ulnar Nerve

Action: Flexion of the Wrist

Question 7

Flexor Pollicis Longus

Origin
Insertion
Innervation
Action

Answer 7

Origin: Anterior Surface of the radius

Insertion: Base of the distal phalanx of the thumb

Innervation: Median Nerve

Action: Flexion of the metacarpophalangeal joints

Question 8

Pronotor Quadratus

Origin
Insertion
Innervation
Action

Answer 8

Origin: Linear ridge on the ulna

Insertion: anterior surface of the radius

Innervation: Median Nerve

Action: Pronation of the Forearm