Wrist

Question 1

Name the Origin, Insertion, Action, and Innervation of the: Extensor carpi radialis brevis

Answer 1

O: Lateral epicondyle of the humerus (common extensor tendon)
I: Base of the third metacarpal-dorsal aspect
N: Radial Nerve
A: Wrist extension, radial deviation

Question 2

Name the Origin, Insertion, Action, and Innervation of the: Extensor carpi radialis longus

Answer 2

O: Lateral epicondyle of the humerus (common extensor tendon)
I: Base of the second metacarpal-dorsal aspect
N: Radial Nerve
A: Wrist extension, radial deviation

Question 3

Name the Origin, Insertion, Action, and Innervation of the: Extensor carpi ulnaris

Answer 3

O: Lateral epicondyle of the humerus(common extensor tendon) and posterior border of the middle third of the ulna
I: Base of the fifth metacarpal-dorsal aspect
N: Radial nerve
A:Wrist extension, ulnar deviation

Question 4

Name the Origin, Insertion, Action, and Innervation of the: Flexor carpi radialis

Answer 4

O: Medial epicondyle or the humerus (common flexor tendon)
I: Base of the second metacarpal-palmar aspect
N: Median Nerve
A: Wrist flexion, radial deviation

Question 5

Name the Origin, Insertion, Action, and Innervation of the: Flexor carpi ulnaris

Answer 5

O: Medial epicondyle or the humerus (common flexor tendon) and posterior border or the middle third of the ulna
I: Base of the fifth metacarpal and pisiform-palmar aspect
N: Median Nerve
A: Wrist flexion, ulnar deviation

Question 6

Name the Origin, Insertion, Action, and Innervation of the: palmaris longus

Answer 6

O: Medial epicondyle or the humerus (common flexor tendon)
I: Transverse carpal ligament and palmar aponeurosis
N: Median Nerve
A: Wrist flexion

Question 7

What are the 8 carpal bones?

Answer 7

Scaphoid, trapezoid, trapezium, capitate, hamate, lunate, pisiform, triquetrum

Question 8

What are the primary wrist Extensors?

Answer 8

Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi ulnaris

Question 8

What are the primary wrist Flexors?

Answer 8

Flexor carpi radialis
Flexor carpi ulnaris
Palmaris longus

Question 9

What are the primary radial deviators?

Answer 9

Extensor carpi radialis longus

Extensor carpi radialis brevis

Question 10

What are the primary ulnar deviators?

Answer 10

Extensor carpi ulnaris

Flexor carpi ulnaris