Brachial plexus Flashcards by . .

Q

e

A

lateral cord

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Q

f

A

musculocutaneous nerve (C5, C6, C7)

from lateral cord

innervates
- coracobrachialis muscle
- biceps brachii
- brachialis muscle

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Q

g

A

median nerve (C6-T1)

lateral/medial cords

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Q

m

A

medial cord

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Q

n

A

posterior cord

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Q

a

A

upper trunk

C5 + C6

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Q

b

A

lateral cord

anterior division of superior trunk
anterior division of middle trunk

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Q

c

A

Musculocutaneous nerve (lateral trunk)

C5, C6, C7

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Q

d

A

medial nerve (C6-T1)

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Q

e

A

Posterior cord

made of posterior division of the upper, middle and lower trunk

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Q

f

A

medial cord

(anterior division of the inferior trunk)

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Q

g

A

Lower trunk

C8 / T1

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Q

a

A

middle scalene muscle

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Q

c

A

C5 root of brachial plexus

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Q

d

A

T1 root

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Q

e

A

superior trunk (C5/C6)

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Q

f

A

middle trunk (c7)

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Q

g

A

inferior trunk - (C8 and T1)

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Q

h

A

axillary artery (changes from subclavian at the level of 1st rib)

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Q

j

A

Acromion of scapula

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Q

k

A

Anterior divisions (of superior , middle and lower trunk)

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Q

1

A

Lateral Cord

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Q

2

A

Posterior cord

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Q

3

A

Medial cord

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4

Axillary nerve - C5, C6

5

Musculocutaneous nerve (C5, C6, C7)

6

Radial nerve (C5-T1)

7

Median nerve (C6-T1)

8

Ulnar nerve (C8)

5 terminal branches of the brachial plexus

U must revise more anatomy Ulna C8-T1 Median C6-T1 Radial C5-T1 Musculocutaneous C5-C7 Axillary - C5 + C6

A

Posterior cord divides into axillary and radial nerves (posterior divisions of upper, middle and lower trunk)

B

Axillary artery

c

Axillary nerve C5, C6 (from posterior cord)

d

radial nerve c5-t1 from posterior cord

brachial plexus goes a. root - trunk - division - cord - branch b. root- division - trunk - cord - branch

a.

x

axillary artery

a

lateral cord

b

axillary artery

c

musculocutaneous nerve

d

median nerve

e

ulnar nerve

a

pectoralis minor

a

C5

b

C6

c

C7 (stays by itself to form the middle trunk)

d

C8

e

T1

f

superior trunk (C5 + C6)

g

middle trunk - Continuation of C7

h

inferior trunk - C8- T1

a

musculocutaneous nerve c5, c6, c7

b

ulnar nerve - C8 , T1

c

medial nerve C6- T1

e

lateral cord Anterior division of super and middle trunk

f

medial cord anterior division of inferior trunk

what is the posterior cord made of?

posterior division of the superior , middle and inferior trunk

what cord is the axilary nerve from

posterior cord

what cord is the radial nerve from?

posterior cord

what cord is the musculocutaneous nerve from

lateral cord

what cord is the ulnar nerve from

medial cord

what cord is the median nerve from

medial and lateral cords

a

medial nerve (lateral and medial cord)

b

musculocutaneous nerve lateral cord

c

Lateral cord (anterior division of the superior and middle trunk)

d

Medial cord (anterior division of inferior trunk)

e

Axillary nerve posterior cord

f

Ulnar nerve medial cord