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anatomy > Nerve Supply Of The Upper Limb > Flashcards

Nerve Supply Of The Upper Limb Flashcards

1
Q

What is the primary nerve responsible for the movement of the deltoid muscle?

A

The axillary nerve.

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2
Q

True or False: The median nerve innervates the majority of the flexor muscles in the forearm.

A

True.

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3
Q

Fill in the blank: The _____ nerve is responsible for the sensation in the skin of the palm and fingers.

A

median

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4
Q

Which nerve is commonly affected in carpal tunnel syndrome?

A

The median nerve.

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5
Q

What is the main function of the ulnar nerve?

A

It innervates the intrinsic muscles of the hand.

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6
Q

Multiple Choice: Which of the following nerves does NOT arise from the brachial plexus? A) Musculocutaneous B) Radial C) Phrenic

A

C) Phrenic.

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7
Q

What is the role of the radial nerve?

A

It extends the elbow, wrist, and fingers.

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8
Q

True or False: The long thoracic nerve innervates the serratus anterior muscle.

A

True.

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9
Q

Fill in the blank: The _____ nerve is responsible for wrist flexion and sensation in the lateral aspect of the hand.

A

median

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10
Q

What are the roots of the brachial plexus?

A

C5, C6, C7, C8, and T1.

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11
Q

Multiple Choice: Which nerve is primarily responsible for the ‘wrist drop’ condition? A) Ulnar B) Radial C) Median

A

B) Radial.

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12
Q

What is the function of the musculocutaneous nerve?

A

It innervates the anterior compartment of the arm.

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13
Q

True or False: The median nerve provides sensation to the entire hand.

A

False.

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14
Q

Fill in the blank: The _____ nerve can be injured by a fracture of the surgical neck of the humerus.

A

axillary

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15
Q

What is the clinical significance of the ulnar nerve?

A

It is involved in ‘claw hand’ deformity when injured.

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16
Q

Multiple Choice: Which nerve is responsible for thumb opposition? A) Radial B) Ulnar C) Median

A

C) Median.

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17
Q

What is the pathway of the radial nerve in the arm?

A

It travels posteriorly and wraps around the mid-shaft of the humerus.

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18
Q

True or False: The suprascapular nerve innervates the infraspinatus and supraspinatus muscles.

A

True.

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19
Q

Fill in the blank: The _____ nerve contributes to the formation of the median nerve.

A

lateral antebrachial cutaneous

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20
Q

What does the term ‘brachial plexus’ refer to?

A

A network of nerves that supply the upper limb.

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21
Q

Multiple Choice: Which nerve is responsible for flexing the elbow? A) Axillary B) Musculocutaneous C) Radial

A

B) Musculocutaneous.

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22
Q

What symptoms might indicate an injury to the radial nerve?

A

Wrist drop and inability to extend the fingers.

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23
Q

True or False: The median nerve passes through the cubital tunnel at the elbow.

A

False.

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24
Q

Fill in the blank: The _____ nerve is responsible for the sensation of the medial side of the hand.

A

ulnar

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25
Q

What is the primary nerve responsible for the flexion of the elbow?

A

Musculocutaneous nerve

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26
Q

Which nerve innervates the majority of the intrinsic muscles of the hand?

A

Ulnar nerve

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27
Q

True or False: The radial nerve is responsible for wrist extension.

A

True

28
Q

Fill in the blank: The __________ nerve is the main nerve of the anterior compartment of the forearm.

A

Median

29
Q

What nerve is affected in carpal tunnel syndrome?

A

Median nerve

30
Q

Which nerve provides sensation to the skin of the posterior arm and forearm?

A

Radial nerve

31
Q

Multiple choice: Which nerve is NOT part of the brachial plexus? A) Median B) Ulnar C) Femoral D) Musculocutaneous

A

C) Femoral

32
Q

What is the terminal branch of the brachial plexus that innervates the deltoid and teres minor muscles?

A

Axillary nerve

33
Q

True or False: The ulnar nerve passes behind the medial epicondyle of the humerus.

A

True

34
Q

Which nerve is responsible for the sensation of the lateral aspect of the forearm?

A

Musculocutaneous nerve

35
Q

Fill in the blank: The __________ nerve innervates the thenar muscles and the lateral two lumbricals.

A

Median

36
Q

What is the primary function of the radial nerve?

A

Extension of the arm and forearm

37
Q

Which nerve is commonly tested by tapping over the wrist to check for carpal tunnel syndrome?

A

Median nerve

38
Q

Multiple choice: Which nerve innervates the flexor carpi ulnaris? A) Median B) Ulnar C) Radial D) Axillary

A

B) Ulnar

39
Q

What is the primary action of the intrinsic muscles of the hand?

A

Fine motor control and manipulation

40
Q

True or False: The median nerve passes through the carpal tunnel.

A

True

41
Q

Which nerve is responsible for the sensation of the little finger?

A

Ulnar nerve

42
Q

Fill in the blank: The __________ nerve innervates the triceps brachii muscle.

A

Radial

43
Q

What is the main function of the axillary nerve?

A

Innervates the deltoid and teres minor muscles

44
Q

Multiple choice: Which nerve does NOT provide sensory innervation to the hand? A) Ulnar B) Median C) Radial D) Femoral

A

D) Femoral

45
Q

What is the clinical significance of the ‘funny bone’?

A

It refers to the ulnar nerve being compressed at the elbow.

46
Q

True or False: The musculocutaneous nerve is a branch of the lumbar plexus.

A

False

47
Q

Which nerve can be affected in cases of shoulder dislocation?

A

Axillary nerve

48
Q

Fill in the blank: The __________ nerve innervates the dorsal aspect of the hand.

A

Radial

49
Q

What is the result of a lesion in the radial nerve?

A

Wrist drop

50
Q

Multiple choice: The ulnar nerve is primarily responsible for which of the following? A) Wrist flexion B) Elbow extension C) Finger abduction D) Shoulder abduction

A

C) Finger abduction

51
Q

True or False: The median nerve innervates the majority of the flexor muscles in the forearm.

A

True

52
Q

What is the anatomical pathway of the median nerve?

A

It travels down the arm, passing through the cubital fossa and entering the carpal tunnel.

53
Q

Fill in the blank: The __________ nerve provides sensation to the palmar aspect of the lateral three and a half fingers.

A

Median

54
Q

Which nerve is primarily responsible for the opposition of the thumb?

A

Median nerve

55
Q

True or False: The median nerve has no motor functions in the hand.

A

False

56
Q

What happens with an injury to the ulnar nerve at the elbow?

A

Loss of sensation in the little finger and weakness in finger abduction.

57
Q

Multiple choice: Which nerve is responsible for the extension of the forearm? A) Median B) Ulnar C) Radial D) Musculocutaneous

A

C) Radial

58
Q

Fill in the blank: The __________ nerve is critical for the grip strength of the hand.

A

Ulnar

59
Q

What is the relationship between the brachial plexus and the upper limb nerves?

A

The brachial plexus gives rise to the major nerves of the upper limb.

60
Q

True or False: The radial nerve innervates the biceps brachii muscle.

A

False

61
Q

What does the term ‘wrist drop’ indicate?

A

Inability to extend the wrist due to radial nerve injury.

62
Q

Multiple choice: Which of the following nerves does NOT arise from the posterior cord of the brachial plexus? A) Upper subscapular B) Thoracodorsal C) Medial cutaneous nerve of the arm D) Axillary

A

C) Medial cutaneous nerve of the arm

63
Q

Fill in the blank: The __________ nerve supplies the skin of the medial forearm.

A

Medial cutaneous nerve of the forearm

64
Q

What is the main function of the long thoracic nerve?

A

Innervates the serratus anterior muscle.

65
Q

True or False: The median nerve is responsible for flexing the thumb.

A

True

66
Q

Which nerve is commonly referred to in the context of ‘claw hand’?

A

Ulnar nerve

anatomy (9 decks)

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