Unit Two Nerves Of Hand Flashcards

1
Q

What two nerves supply the hand

A

Median and ulnar nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Does the radial nerve supply the muscles in the hand

A

No but does have sensory distribution in the hand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The palmar cutaneous branch of the median nerve separates where

A

Prior to the carpal tunnel and passes over the flexor retinaculum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Palmar cutaneous branch supplies what

A

Midpalmar surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What supplies the palmar surfaces of digits 1-3 and lateral half of the 4th, and the dorsum of the distal half of digits 1-4

A

Sensory branch of median nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The ulnar nerve runs distally in the forearm under what muscle

A

Flexor carpi ulnaris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The ulnar nerve enters the wrist via

A

Ulnar canal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Does the palmar cutaneous branch of the ulnar nerve pass through the flexor retinaculum

A

No, it passes superficial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The dorsal cutaneous branch of ulnar nerve supplies what

A

Medial half of dorsum of hand and the 5th finger and medial half of the 4th digit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The palmar cutaneous branch of the ulnar nerve supplies what

A

Proximal hypothenar eminence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The superficial branch of the ulnar supplies what

A

Anterior surface of the 4th and 5th digits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The deep branch of the ulnar nerve supplies what

A

Hypothenar muscles, the interossei, lumbricals of 4th and 5th digits and the adductor pollicis and deep head of flexor pollicis brevis, local joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The ulnar nerve is known as

A

The nerve of the fine finger movements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The radial nerves supplies what of the hand

A

Skin over the lateral 2/3rds of the dorsum of the hand, thumb and proximal lateral 1.5 digits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the primary and initial complaint of carpal tunnel syndrome

A

Paresthesias

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When does carpal tunnel syndrome act the worse

A

At night but relieved by hand movement

17
Q

What is an indication of chronic compression of carpal tunnel syndrome

A

Thenar waisting

18
Q

What other symptoms contribute to carpal tunnel syndrome

A

Hypothyroidism, osteoarthritis, diabetes, wrist trauma, pregnancy, hypothyroidism, acromegaly, tumor (lipoma, ganglion cyst, synovial cyst)

19
Q

What are some irritating or inflammation (sensory nerves) symptoms of carpal tunnel syndrome

A

Pain and paresthesisas

20
Q

What some ablative symptoms of carpal tunnel syndrome

A

Numbness/ anesthesia and weakness/atrophy

21
Q

What are some worsening symptoms of carpal tunnel syndrome

A

Decrease sensation at the volar pads of the thumb and index finger due to compression of median nerves

22
Q

What muscle is not completely affected by median nerve during carpal tunnel syndrome

A

Flexor pollicis brevis

23
Q

Aka of ulnar nerve compression

A

Guyons canal syndrome

24
Q

What causes guyons canal syndrome

A

Entrapment of the ulnar nerve in the guyon canal as passes through the wrist

25
Q

Symptoms of guyons canal syndrome

A

Begins with paresthesias in ring and pinky, follow by decreased sensation and eventually weakness and clumsiness in the hand as the small muscles of the hand are involved

26
Q

If the ulnar nerve is compressed at the wrist, what happens to the sensation of the dorsum of the hand

A

Normal sensation

27
Q

How many zones in guyons canal

A

Three

28
Q

If there is a lesion in zone 1 of guyons canal what occurs

A

Motor and sensory symptoms

29
Q

Lesion in zone 2 of guyons canal

A

Motor deficits

30
Q

Lesions in zone 3 of guyons canal

A

Sensory deficits

31
Q

What ligaments are affected in guyons canal syndrome

A

Pisohamate ligament, trans carpal ligament, volar carpal ligament

32
Q

What syndrome is common in road cyclists

A

Handlebar palsy, ulnar nerve compression