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PNS exam III - mine > Brachial Plexus - Part 2 > Flashcards

Brachial Plexus - Part 2 Flashcards

1
Q

The suprascapular nerve contains fibers from what?

A

C5 and C6

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2
Q

The suprascapular nerve supplies what two muscles?

A

supraspinatus

infraspinatus

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3
Q

The supraspinatus and infraspinatus are part of what?

A

The rotator cuff

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4
Q

The nerve to the subclavius contains fibers from what?

A

C5 and C6

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5
Q

The nerve to the subclavius supplies what?

A

subclavius

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6
Q

Which nerves are part of the supraclavicular part of the brachial plexus?

A

Dorsal scapular nerve
Long thoracic nerve
Suprascapular nerve
Nerve to the subclavius

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7
Q

The lateral pectoral nerve branches off of what?

A

The lateral cord of the brachial plexus

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8
Q

The lateral pectoral nerve contains fibers from what?

A

C5,C6, C7

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9
Q

The lateral pectoral nerve supplies what muscle?

A

Pectorals major

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10
Q

The pectorals major is supplied by the lateral pectoral nerve but will also receive innervation from what other nerve?

A

Medial pectoral nerve

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11
Q

The musculocutaneous nerve is on of two ______ branches of the ____?

A

Terminal

Lateral cord

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12
Q

The musculocutaneous nerve contains fibers from which nerves?

A

C5, C6, C7

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13
Q

The musculocutaneous nerve supplies 3 (or 4) muscles of the anterior arm. They are?

A

coracobrachialis
Biceps brachii (both long and short heads)
brachialis

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14
Q

Why would you say the musculocutaneous is supplying 4 muscles?

A

If you include the two heads of biceps brachii as two muscles

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15
Q

The musculocutaneous nerve pierces what muscle?

A

coracobrachialis

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16
Q

After piercing the coracobrachialis, the musculocutaneous nerve continues between what? To become what nerve?

A

Biceps brachii and brachialis

Lateral cutaneous nerve of the forearm

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17
Q

The lateral cutaneous nerve of the forearm supplies what?

A

Skin over lateral aspect of the forearm

18
Q

Does the lateral cutaneous nerve of the forearm supply the hand?

A

NO

19
Q

The other terminal branch (other than musculocutaneous) of the lateral cord contributes to which nerve?

A

Median nerve

20
Q

What 4 nerves are branches off the medical cord of the brachial plexus?

A

Medial pectoral nerve
Medial cutaneous nerve of the arm
Medial cutaneous nerve of the forearm
ulnar nerve

21
Q

The medial pectoral nerve contains fibers from what nerves?

A

C8 and T1

22
Q

The medial pectoral nerve supplies what two muscles?

A

Pectoralis major

Pectoralis minor

23
Q

The medial cutaneous nerve of the arm contains fibers from what?

A

C8 and T1

24
Q

The medial cutaneous nerve of the arm ramifies (branches) where?

A

In the axilla

25
Q

The medical cutaneous nerve of the arm supplies what?

A

Skin of medial arm between axilla and elbow

26
Q

The medial cutaneous nerve of the arm receives some fibers from what nerve? How?

A

T2

Through a communication w/the intercostobrachial nerve

27
Q

The medial cutaneous nerve of the forearm contains fibers from what nerve?

A

C8 and T1

28
Q

The medial cutaneous nerve of the forearm supplies what?

A

Skin over biceps brachii and

Skin over anterior and medial aspects of the forearms distal to the wrist

29
Q

This nerve is one of two terminal branches of the medial cord (along with median nerve).

A

Ulnar nerve

30
Q

Ulnar nerve contains fibers from what nerves?

A

C8, T1, and sometimes C7

31
Q

The ulnar nerve travels medial to what? Within what?

A

Brachial artery

Medial bicipital sulcus (furrow)

32
Q

Does the ulnar nerve give off branches in the arm?

A

NO

33
Q

The ulnar nerve crossed over the posterior side of what? In what?

A

The medial epicondyle
Sulcus for the ulnar nerve
(easily palpated here)

34
Q

What is the ulnar nerve called?

A

Funny bone

35
Q

The ulnar nerve continues into the forearm between what?

A

The two heads of the flexor carpi ulnaris

36
Q

The ulnar nerve innervates two muscles in the forearm.

A

Flexor carpi ulnaris

MEDIAL half of flexor digitorum profundus

37
Q

The ulnar nerve gives off what two branches in the forearm?

A

Dorsal branch

Palmar branch

38
Q

The dorsal branch of the ulnar nerve supplies what?

A

Skin on the ulnar side of the posterior hand

39
Q

The palmar branch of the ulnar nerve supplies what?

A

Skin over the hypothenar eminence

40
Q

The ulnar nerve traveling to the wrist travels deep to what?

A

Flexor carpi ulnaris

PNS exam III - mine (12 decks)

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