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Med School Rotations > Brachial Plexus > Flashcards

Brachial Plexus Flashcards

1
Q

What structures are innervated by the dorsal scapular nerve

A

Rhomboids

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2
Q

What structures are innervated by the Long thoracic

A

serratus anterior

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3
Q

What structures are innervated by the suprascapular

A

supraspinatus and infraspinatus muscles

glenohumoral joint

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4
Q

What structures are innervated by the Subclavian nerve

A

subclavius and sternoclavicular joint

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5
Q

What structures are innervated by the lateral pectoral

A

primarily pectoralis major

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6
Q

What structures are innervated by the musculocutaneous

A

muscles of anterior compartment of the arm

  1. coracohrachialis
  2. biceps brachii
  3. brachialis

skin of lateral arm

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7
Q

What structures are innervated by the median nerve

A
  1. muscle of anterior fore arm compartment (except for flexor carpi ulnaris and ulnar half of flexor digitorum profundous)
  2. five intrinisc muscles in thenar half of palm
  3. palmar skin
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8
Q

What structures are innervated by the medial pectoral nerve

A

percoralis minor

sternocostal part of pectoralis major

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9
Q

What structures are innervated by the medial cutaneous nerve of arm

A

skin of medial side of arm, as far distal as medial epicondyle of humerus and olecranon of ulna

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10
Q

What structures are innervated by the median cutaneous nerve of forearm

A

skin of medial side of forearm as far distal as the wrist

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11
Q

What structures are innervated by the ulnar nerve

A

flexor carpi ulnaris and ulnar half of flexor digitorum profundus (for arm)

most intrinisc muscles of hand

skin of hand medial to axial line of digit 4

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12
Q

What structures are innervated by the upper suubscapular nerve

A

superior portion of subscapularis

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13
Q

What structures are innervated by the lower subscapular

A

inferior portion of subscapularis and teres major

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14
Q

What structures are innervated by the thoracodorsal nerve

A

latissimus dorsi

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15
Q

What structures are innervated by the axillary nerve

A

glenohumeral joint

teres minor and deltoid muscles

skin of superolateral arm

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16
Q

What structures are innervated by the radial nerve

A

All muscles of posterior compartments of arm and forearm

skin of posterior and inferolateral arm, posterior forarm and dorsum of hand lateral to axial line of digit 4

17
Q

What is the origin of the dorsal scapular nerve

A

posterior aspect of anterior ramus of C5 with a frequent contribution from C4

18
Q

What is the origin of the long thoracic nerve

A

Posterior aspect of anterior rami of C5, C6, and C7

19
Q

What is the origin of the supra scapular nerve

A

Superior trunk, receiving fibers from C5, C6, C7 and often C4

20
Q

What is the origin of the Subclavian Nerve

A

Superior trunk, receiving input from C5, C6 and often C4

21
Q

What is the origin of the Lateral pectoral nerve

A

Side branch of lateral cord, Receiving fibers from C5, C6, and C7

22
Q

What is the origin of the musculocutaneous nerve

A

Terminal branch of lateral cord, receiving fibers from C5-C7

23
Q

What is the origin of the Median nerve

A

Lateral root of median nerve is a terminal branch of lateral of lateral cord (C6, C7)

Medial root of median nerve is a terminal branch of medial cord (C8, T1)

24
Q

What is the origin of the Medial Pectoral Nerve

A

Side branches of of medial cord, receiving fibers from C8, T1

25
Q

What is the origin of the Medial cutaneous nerve of arm

A

Side branches of of medial cord, receiving fibers from C8, T1

26
Q

What is the origin of the Median cutaneous nerve of forearm

A

Side branches of of medial cord, receiving fibers from C8, T1

27
Q

What is the origin of the Ulnar nerve

A

Larger terminal branch of medial cord, receiving fibers from C8, T1 and often C7

28
Q

What is the origin of the Upper sub scapular nerve

A

Side branch of posterior cord, receiving fibers from C5

29
Q

What is the origin of the lower subscapular

A

side branch of posterior cord receiving fibers from C6

30
Q

What is the origin of the throracodorsal nerve

A

side branch of posterior cord, receiving fibers from C6, C7, C8

31
Q

What is the origin of the axillary nerve

A

Terminal branch of posterior cord, receiving fibers from C5, C6

32
Q

What is the origin of the Radial Nerve

A

Larger terminal branch of posterior cord (Largest branch of plexus) receiving fibers from C5-T1

Med School Rotations (26 decks)

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