Hand

Question 1

The hand contains how many bones?

Answer 1

27

Question 2

How many intrinsic muscles do the the hand have?

Answer 2

18

Question 3

The deep fascia is a continuation of what fascia?

Answer 3

antebrachial fascia

Question 4

The fascia on the dorsum of the hand is a continuation of what?

Answer 4

Extensor Retinaculum

Question 5

The fascia on the dorsum of the will continue distally from the Extensor Retinaculum to where?

Answer 5

The distal phalanges

Question 6

What are the three parts of the palmar fascia?

Answer 6

• Hypothenar fascia
• Thenar Fascia
• Palmar aponeurosis

Question 7

The hypothenar fascia is a thin layer over what?

Answer 7

hypothenar eminence

Question 8

The thenar fascia is a thin layer over what?

Answer 8

thenar eminence

Question 9

Palmar aponeurosis is supported by what muscle

Answer 9

palmaris longus muscle

Question 10

The palmar has how many bands extending to the proximal phalanges

Answer 10

4 bands

Question 11

Any lesion to that decreases the size of the carpal results in what?

Answer 11

Carpal Tunnel Syndrome

Question 12

What are 3 possible causes of carpal tunnel syndrom

Answer 12

• fluid retension
• infection
• excessive exercise

Question 13

What is the softest structure in the carpal tunnel that is most effected by an increase in pressure

Answer 13

Median Nerve

Question 14

What are the two main symptoms of carpal tunnel syndrome

Answer 14

• decrease in sensation to the lateral 3 1/2 fingers (paresthesia, hyposthesia, anesthesia)
• Thenar wasting, and/or weakness of thumb movements

Question 15

What thumb movement is spare due to ulnar nerve innervation during carpal tunnel syndrome

Answer 15

Thumb adduction

Question 16

What are the five compartments of the hand?

Answer 16

• thenar compartment
• adductor compartment
• hypothenar compartment
• central compartment
• interosseous compartment

Question 17

What are the three muscles in the thenar compartment?

Answer 17

• adductor pollicis brevis
• flexor pollicis brevis
• oppenens pollicis

Question 18

What is the one muscle in the adductor compartment of the hand?

Answer 18

Adductor pollicis

Question 19

What are the three muscles in the hypothenar compartment?

Answer 19

• adductor dgiti minimi
• flexor digiti minimi brevis
• opponens digit minimi

Question 20

What is the only group of muscles in the central compartment of the hand?

Answer 20

lumbricals

Question 21

What are the two muscle groups in the interosseous compartments of the hand?

Answer 21

• Palmar interosseous muscles

- dorsal interosseous muscles

Question 22

What is the one muscle with a brevis but not a lungus

Answer 22

-flexor digiti minmi

Question 23

What muscle group plays a role in proprioception of the hand

Answer 23

lumbricals

Question 24

what muscle group helps extend a flexed finger to make the okay sign?

Answer 24

Lumbricals

Question 25

What branch of the median nerve will come off just proximal to the the carpal tunnel (not through) to give cutaneous sensation to the skin of the central palm

Answer 25

palmar cutaneous branch

Question 26

What branch of median nerve comes off just distal to the carpal tunnel and innervates the thenar muscles

Answer 26

Recurrent thenar branch

Question 27

The median nerve extends distally to the digits. When it begins to move towards the digits the nerves are call ___ then as they reach the distal phalanges they become ___

Answer 27

- Common palmar digital nerves | - proper digital nerves

Question 28

Median nerve innervates what fingers?

Answer 28

lateral 3 1/2 fingers

Question 29

What branch of ulnar nerve provides cutaneous innervation to the palm

Answer 29

palmar cutaneous branch of ulnar nerve

Question 30

What branch of ulnar nerve provides cutaneous innervation to the dorsal surface of the hand and the medial 1 1/2 digits

Answer 30

dorsal cutaneous branch of ulnar nerve

Question 31

Superficial branch of the ulnar nerve provides innervation to what?

Answer 31

cutaneous innervation to the palmar surface of the medial 1 1/2 digits

Question 32

The deep branch of ulnar nerve innervates what muscles?

Answer 32

- Hypothenar muscles - 3rd and 4th lumbricals - dorsal and palmar interossei muscles - adductor pollicis - part of flexor pollicis brevis

Question 33

Radial nerve passes through what structure

Answer 33

anatomical snuff box

Question 34

Superficial branch of radial nerve provides cutaneous innervation to what?

Answer 34

- dorsal aspect of lateral hand | - dorsal aspect of the lateral 3 1/2 digits proximal to the DIP joint

Question 35

Claw hand is due to damage of what nerve?

Answer 35

Ulnar nerve

Question 36

What muscles are weakened most in claw hand?

Answer 36

lumbricals

Question 37

What muscle becomes unopposed in the 4th and 5th digits during claw hand

Answer 37

Extensor digitorum muscle

Question 38

What nerve is damaged during Ape Hand

Answer 38

Median nerve

Question 39

Ape hand results in the wasting of what muscles?

Answer 39

Thenar muscles

Question 40

What nerve is damaged during the hand of benediction?

Answer 40

median nerve

Question 41

During the hand of benediction what fingers are unable to flex

Answer 41

lateral 3 1/2 finger

Question 42

What nerve is damaged during wrist drop

Answer 42

radial nerve

Question 43

What muscle group are effected during wrist drop

Answer 43

wrist extensors

Question 44

Ulnar artery will split into what two branches once in the hand?

Answer 44

- Superficial branch of Ulnar A. | - deep branch of Ulnar A.

Question 45

What makes up most of the Superficial Palmar arch?

Answer 45

Superficial Ulnar Artery

Question 46

What makes up most of the deep palmar arch?

Answer 46

Deep Radial Artery

Question 47

Princeps Pollicis Comes from what artery (radial/ulnar)?

Answer 47

Radial

Question 48

Radial Indicis artery comes from what artery Princeps Pollicis Comes from what artery (radial/ulnar)?

Answer 48

Radial