Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CP1080 > Upper Limb Clinical Anatomy > Flashcards

Upper Limb Clinical Anatomy Flashcards

1
Q

What is the dermatome of C5?

A

Shoulder tip
Lateral part of upper arm

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

What is the dermatome of C6?

A

Lateral aspect of forearm and thumb

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

What is the dermatome of C7?

A

Middle finger

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

What is the dermatome of C8?

A

Little finger

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

What is the dermatome of T1?

A

Medial aspect of upper arm and elbow

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

What does the radial nerve supply?

A

Brachioradialis
Extensors of hand
Triceps brachii

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

What is the characteristic deformity of the radial nerve?

A

Wrist drop

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

If wrist drop isn’t obvious, how would you demonstrate this?

A

Flex elbow
Pronate forearm
Extend wrist and fingers

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

When is the triceps brachii muscle affected by a radial nerve injury?

A

If a lesion occurs in the upper third of the arm

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

How would one test sensation of the radial nerve?

A

Area over anatomical snuff box

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

Which muscles of the hand does the median nerve supply?

A

Lateral 2 lumbrical
Opponens pollicis
Abductor pollicis brevis
Flexor pollicis brevis (in many people)

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

How would you assess for weakness of abductor pollicis brevis?

A

Pen-touching test
Hand flat, palm supinated, abduct thumb vertically to touch pen.

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

What is the Ochsner’s clasping test?

A

Tests loss of FDS
Clasp hands firmly together
The index finger on the affected side fails to flex with a lesion of the median nerve in the cubital fossa or higher

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

What is the sensory distribution of the median nerve?

A

Palmar aspect of thumb, index finger, middle finger, lateral half of the ring finger
The palm is spared in median nerve lesions in the carpal tunnel

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

What is the defining hand deformity of the median nerve?

A

Hand of Benediction

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

What is the defining hand deformity of the ulnar nerve?

A

Claw hand deformity - hyperextension of MCP joints and flexion of IP joints

17
Q

When is an ulnar claw deformity more pronounced?

A

Lesion of nerve at wrist than a lesion at or above the elbow
More distal lesions cause greater deformity

18
Q

What is Froment’s sign?

A

Grasp paper between thumb and lateral index finger with each hand
Affected thumb will flex because of loss to adductor pollicis

19
Q

What is the sensory distribution of the ulnar nerve?

A

Palmar and dorsal aspects of little finger and medial ring finger

20
Q

How does a patient with a dislocated shoulder present?

A

Head of humerus protrudes
Grasps injured arm to support it
Deformed shoulder
Bruising

21
Q

What is possible due to a fracture of the surgical neck of humerus?

A

Axillary nerve damage

22
Q

What is fracture of the distal part of the humerus called?

A

Supracondylar fracture

23
Q

What may a supracondylar fracture of the humerus cause?

A

Damage brachial artery
May lead to Volkmann’s Ischaemic Contracture

24
Q

What is Volkmann’s Ischaemic Contracture?

A

Deep flexors are partially involved
One or more fingers extended with wrist flexion
Resistant pronation contracture

25
Q

What may tenderness in the anatomical snuff box mean?

A

Broken scaphoid bone

26
Q

Why is a scaphoid fracture so serious?

A

Avascular necrosis
Blood supply is broken in a fracture putting the proximal part of the scaphoid at risk of necrosis after a fracture

27
Q

What is the medical term for compression of the median nerve as it enter the hand?

A

Carpal tunnel syndorme

28
Q

What would you see in a patient with long-standing Carpal Tunnel Syndorme?

A

Wasting of thenar eminence

29
Q

What nerve is damaged when there is an injury involving the medial epicondyle of the humerus?

A

Ulnar nerve

30
Q

What would you see on inspection of a patient with a suspected ulnar nerve palsy?

A

Wasting of hypothenar eminence

31
Q

What nerve is injured in Saturday Night Palsy?

A

Radial nerve

32
Q

When may the radial nerve be injured?

A

As it moves through the spiral groove of the humerus, midshaft fracture of the humerus

CP1080 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions