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Anatomy > Brachial plexus > Flashcards

Brachial plexus Flashcards

1
Q

Musculocutaneous nerve
which cord?
Which spinal nerve?
Innervates What?

A

Cord: Lateral anterior, part of the M shape.
Spinal nerves C5, C6, and C7
Innervates the flexors of the forearm and the skin.
-Anterior forearm flexion
-Coracobrachialis, brachialis and biceps brachii
-Sensory to lateral forearm

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2
Q

Median nerve
Which cord?
Which spinal nerve?
Innervates what?

A

Cord: Lateral root of the lateral cord and the medial root of the medial cord.
Spinal nerves C6, C7, C8 and T1
innervates: Anterior forearm-wrist flexion and pronation
sensory to the lateral palm
Flexors of the forearm, thenar mm

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3
Q

Ulnar nerve
which cord?
Which spinal nerve?
Innervates What?

A

Cord is the medial cord
Spinal nerve is C8, T1,
Innervates the anteromedial forearm and intrinsic hand
flexor carpi ulnaris, intrinsic musculature of the hand/

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4
Q

Axillary
which cord?
Which spinal nerve?
Innervates What?

A

Cord: Posterior cord
Spinal nerve is C5 and C6
Innervation to the deltoid and the teres minor.

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5
Q

Radial nerve
which cord?
Which spinal nerve?
Innervates What?

A

Cord: Posterior
Spinal nerves: C5, C6, C7, C8 and T1
Innervates the Posterior arm and forearm, forearm and wrist extensors,
extensors, triceps.

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6
Q

Lateral pectoral nerve
which cord?
Which spinal nerve?
Innervates What?

A

Lateral cord
Spinal nerves include C5, C6 and C7,
Innervates the pectoralis major m.

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7
Q

Medial pectoral nerve
which cord?
Which spinal nerve?
Innervates What?

A

cord: medial
spinal nerves: C8 and T1
Innervation to the pectoralis major and minor m.
(sternocostal portion of the pectoralis minor).

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8
Q

Medial brachial cutaneous (medial cutaneous n. of arm)
which cord?
Which spinal nerve?
Innervates What?

A

cord: medial
Spinal nerves are C8, T1,
Innervation to the skin of the medial arm

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9
Q

Medial antebrachial cutaneous nerve (medial cutaneous nerve of the forearm)
which cord?
Which spinal nerve?
Innervates What?

A

Cord: medial
spinal nerves: C8-T1
Innervation to the skin of the medial forearm

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10
Q

Upper subscapular
which cord?
Which spinal nerve?
Innervates What?

A

cord: posterior
spinal nerves: C5
Innervation to the superior portion of the subscapularis

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11
Q

Lower subscapular
which cord?
Which spinal nerve?
Innervates What?

A

Cord: Posterior
Spinal nerves: C6,
Innervation to the teres major and inferior portion of the subscapularis.

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12
Q

Thoracodorsal
which cord?
Which spinal nerve?
Innervates What?

A

Cord: posterior
Spinal nerves C6, C7, and C8,
Innervation to the Lats

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13
Q

Dorsal scapular
which cord?
Which spinal nerve?
Innervates What?

A

Cord: Posterior aspect of the anterior ramus of C5
Spinal nerves-C5
innervation to rhomboids and the levator scapulae.

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14
Q

Long thoracic nerve
which cord?
Which spinal nerve?
Innervates What?

A

Cord: Roots of C5, C6, and C7
Spinal nerves C5, C6, C7
Innervation to the serratus anterior

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15
Q

Suprascaular
which cord?
Which spinal nerve?
Innervates What?

A

cord: Superior trunk
Spinal nerves: C5 and C6
Innervation to the infraspinatus and the supraspinatus

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16
Q

nerve to the subclavius
which cord?
Which spinal nerve?
Innervates What?

A

cord: Superior trunk(before the suprascaupular)
Spinal nerves: C5 and C6
Innervates the subclavius.

17
Q

C5

A 
musculocutaneous
axillary
radial
Dorsal scapular (only innervated by C5)
suprascapular
Lat pectoral
upper subscapular (only innervated by C5)
Nerve to subclavius
Long throracic
18
Q

2 nerves only innervated by C5

A

Dorsal scapular

Upper subscapular

19
Q

C6

A 
Musculocutaneous
median
axillary
suprascapular
lat pectoral
lower subscapular (only innervated by C6)
thoracodorsal
nerve to subclavius
20
Q

Only nerve innervated by C6

A

Lower subscapular

21
Q

C7

A 
Musculocutaneous
median
radial
lat pectoral
thoracodorsal
Long thoracic
22
Q

C8

A

Median
Ulnar
Radial
Medial pectoral
medial cutaneous f the arm (medial brachial cutaneous)
Medial cutaneous of the forearm (medial antebrachial cutaneous)
Thoracodorsal

23
Q

T1

A 
Median
ulnar
Radial
Medial pectoral
Medial cutaneous of the forearm
Medial cutaneous n. of the arm

Anatomy (4 decks)

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