Forearm, Wrist, and Hand

Question 1

Mnemonic of downward hand facing with towards you for the carpal bones

Answer 1

“SLiT TeeTee’s CHiP”

Question 2

Which carpal bone commonly gets injured along with the anatomical snuff box?

Answer 2

The Scaphoid bone

Question 3

What are the two main bones that make the radiocarpal bone which make contact with the radius and the ulna

Answer 3

Scaphoid and Lunate

Question 4

Pronation vs Supination. The anterior forearm is mainly use to ______ while the posterior forearms is used to _____

Answer 4

Pronate, Supinate

Question 5

For the arm muscles, what does the phrase “deeper goes distal” mean

Answer 5

The deeper muscles tend to go further

Question 6

Two pronator muscles for forearm

Answer 6

1. Pronator Teres
2. Pronator Quadratus (deeper)

Question 7

Flexor digitorum Index and middle finger are innervated by _____ while the ring and pinky are the ____ nerve

Answer 7

Median, Ulnar

Question 8

Why is the brachioradialis, which is innervated by the radial nerve referred to as the “handshake” muscle?

Answer 8

Because it works best in a semi-supinated position

Question 9

Two main nerve names in the posterior forearm?

Answer 9

Radial and Deep radial

Question 10

Given the amount of the divisions, the primary blood supply of the forearm is really the _____ artery

Answer 10

Ulnar

Question 11

Most of the sensation of the hand is from the _____ nerve, whereas most of the manipulation comes from the deep _____ nerve

Answer 11

Median, Ulnar

Question 12

The ____ of the flexors and extensors of the wrist and hand are bands of fascia that facilitate the motion of the tendon. Bursal sacs are formed under the extensor retinaculum .to prevent friction with tendo-synovial sheathes

Answer 12

Retinacula

Question 13

____ Nerve compression results in carpal tunnel, which contains 9 flexor tendons

Answer 13

Meian

Question 14

What happens to the thenar eminence as a result of median nerve compression?

Answer 14

It will become flat

Question 15

Out of The Intrinsic Hand muscles; thenar, hypothenar, lumbricales, and interossei, how many muscles are there? Ulnar innervates most of them.

Answer 15

18 muscles

Question 16

Injury to lumbricals gives what animal-ilke characteristic to the hand?

Answer 16

Claw-like hand

Question 17

Since the lumbricals can pass both through the anterior and the posterior this allows it to perform both ____ at the PIP and _____ at the MP

Answer 17

Extension, Flexion

Question 18

Palmar vs Dorsal Interossie Functions

Answer 18

• Palmar adducts together
• Dorsal abducts away

Question 19

While the motor cervical nerves lower numbers correspond with more proximal, the anatomical mnemonic for sensation goes with low numbers as _____ and high numbers as ______

Answer 19

Lateral, medial

Question 20

The median nerve innervates 2LOAF in the hand, what does it stand for? (OAF is the thenar mucles)

Answer 20

• 2 Lumbricals
• Oponins
• Abductor polliic brevis
• Flexor policis brevis

Question 21

For cutaneous innervation in the hand where does the median nerve cover?

Answer 21

Thumb up to half of ring finger

Question 22

For cutaneous innervation of the hand, where does the ulnar nerve cover?

Answer 22

Half of ring finger to pink