ppt2: deep NV of the neck Flashcards Preview

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Flashcards in ppt2: deep NV of the neck Deck (39)
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1

the right and left subclavian arteries originate from what?

R originates from brachiocephalic trunk
L originates from aortic arch

2

the subclavian artery: arches superolateral to what? then descends of what two things?

Arch superolaterally behind anterior scalene
Descend over 1st rib & posterior to clavicle

3

what landmark does the subclavian artery become axillary?

Become axillary at lateral 1st rib

4

how many "parts" are there of the subclavian artery? how many branches in each part?

3 parts:
1st: 3 branches
2nd: 1 branch
3rd: 1 branch

5

where is the 1st part of the subclavian artery?

medial to anterior scalene

6

what are the 3 branches of the 1st part of the subclavian artery?

vertebral artery
internal thoracic artery (mammary)
thyrocervical trunk

7

the vertebral artery goes ______ and enters transverse foramen of C__

-goes posterior and enters transverse foramen of C6

8

the internal thoracic (mammary) artery goes where?

descends into thorax

9

the thyrocervical trunk divides into how many branches ? what are they?

3 : inferior thyroid, transverse cervical, suprascapular

10

which branch of the thyrocervical trunk is the major visceral artery?

inferior thyroid artery

11

the transverse cervical artery [ of the thyrocervical trunk (part 3 of subclavian) ] supplies blood to what 3 things?

muscles: trap, rhomboids, levator scapula

12

the suprascapular artery supplies blood to what?

supraspinatus and infraspinatus

13

where is part two of the subclavian artery? what is its branch?

posterior to anterior scalene
- costocervical trunk

14

what does the costocervical trunk supply blood to?

supplies intercostal spaces (1-2) & posterior cervical muscles

15

where is part three of the subclavian artery? what is its branch?

lateral to anterior scalene
- dorsal scapular artery

16

what does the dorsal scapular artery supply blood to?

medial scapular border muscles

17

what does the dorsal scapular artery pass between?

between trunks of brachial plexus

18

the dorsal scapular artery usually comes off part 3 of subclavian artery BUT may come from what other structure?

transverse cervical artery (deep branch) - of the thyrocervical trunk in part one of subclavian A.

19

subclavian vein passes over what? and unites with what to form the brachiocephalic vein?

Passes over 1st rib anterior to anterior scalene
Unites with internal jugular to form brachiocephalic

20

what is the "venous angle" of the subclavian vein?

Venous angle-merging of subclavian & internal jugular, major lymphatic trunks empty here.

21

recurrent laryngeals come off what nerve?

vagus

22

what do right and left recurrent laryngeals recur around?

R recurrent laryngeal recurs around R subclavian artery
L recurrent laryngeal recurs around aortic arch

23

recurrent laryngeal nerves recur in ________ _______

tracheoesophageal groove
Laryngeal muscles except cricothyroid

24

recurrent laryngeal nerves supply what muscles?

all Laryngeal muscles except cricothyroid

25

the phrenic nerve is motor or sensory ? what does it supply?

motor nerve of cervical plexus -
motor supply to hemidiaphragm

26

the phrenic nerve is formed where? it runs along the anterior surface of what muscle?

Formed at apex of scalene triangle (C3-C4 loop & C5)
-anterior scalene

27

the phrenic nerve is "strapped down" by what two structures?

transverse cervical & suprascapular arteries

28

the phrenic nerve enters the thorax between what two structures?

Enter thorax between subclavian artery & vein

29

phrenic nerve receives _______ afferents from where?

Visceral afferents from pericardium, pleura, etc.

30

the sympathetic chain in the neck is posterior to what?

carotid sheath