Brachial plexus Flashcards Preview

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Flashcards in Brachial plexus Deck (109)
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0

what forms the brachial plexus?

the anterior primary ramus of C5 through T1

1

The roots receive a gray ramus communicans from where?

the sympathetic trunk

2

where does the roots pass between on their way to the posterior triangle?

the anterior and middle scalene

3

what are the three cervical ganglions associated with the roots?

the superior, middle, and inferior (stellate) ganglion

4

where do the roots pass after the posterior triangle?

posterior and superior to subclavian artery

5

What are the trunks of the branchial plexus?

Superior, Middle, Inferior trunk

6

what roots make of the superior trunk

C5 and C6

7

what roots make up the middle trunk

C7

8

what roots make up the inferior trunk

C8 and T1

9

what do the trunks pass over before they arrive in the axilla

over rib 1

10

what does each trunk split into?

anterior and posterior division

11

what supplies the anterior compartment of the arm and forearm

anterior division

12

what supplies the posterior compartments of the arm and forearm

posterior dividsion

13

What is formed by the anterior division of the superior and middle trunk?

lateral cord

14

the lateral cord contains fibers from which roots?

C5, C6, and C7

15

the lateral cord produces which nerves?

musculocutaneous and 1/2 median

16

what lies lateral to the second part of the axillary artery

lateral cord

17

what is made from the anterior division of the inferior trunk

medial cord

18

the medial cord contain fibers from which roots

C8, T1

19

what lies medial to the second part of the axillary artery

medial cord

20

what is nerves come from the medial cord

ulnar, and 1/2 median

21

what is formed by the union of the posterior division of all three trunks?

posterior cord

22

the posterior cord contains fibers from which roots

C5, C6, C7, C8, and T1

23

what nerves come from the posterior cord

axillary and radial nerve

24

what lies posterior to the second part of axillary artery

posterior cord

25

the dorsal scapular nerve contains fibers from which root

C5

26

what muscles are supplied by the dorsal scapular nerve

levator scapula, rhomboid major, rhomboid minor

27

which muscle supplied by the dorsal scapular nerve that also receives fiber from another root and what roots are they?

levator scapula from C3 and C4

28

what nerves are from from roots of the brachial plexus

dorsal scapular nerve and long thoracic nerve

29

what roots form form the long thoracic nerve

C5, C6, and C7