Blood Vessels and Lymphatics: stephens Flashcards Preview

Neuroscience 1 > Blood Vessels and Lymphatics: stephens > Flashcards

Flashcards in Blood Vessels and Lymphatics: stephens Deck (37):
1

vertebral artery comes off what and goes where

off 1st part of subclavian artery
enters transverse foramen of C6-C1 and goes through foramen magnum to form the basilar artery

2

causes of subclavian steal syndrome

-obstruction of subclavian artery proximal to vertebral artery
-episodic increase in periph circulatory demand in associated extremity (due to exercise

3

vertebro-basilar insufficiency clinical signs and symptoms

dizziness
cranial nerve dysfunction
paralysis
loss of consciousness

4

what comes off 1sat part of subclavian a

vertebral a
internal thoracic a
thyrocervical trunk

5

what comes off the thyrocervical trunk

inferior thyroid artery
-ascending cervical a (runs with phrenic n)
-inferior laryngeal a (enters larynx with RLN)
suprascapular a: crosses anterior scalene m
transverse cervical a: runs parallel and suprior to suprascapular artery

6

the dorsal scapular artery is often a branch of what

the transverse cervical artery (50%)

7

2nd part of subclavian artery

costocervical trunk

8

costocervical trunk branches

deep cervical
supreme intercostal a

9

the right common carotid artery begins where

at bifurcation of brachiocephalic trunk, just posterior to the right SC joint

10

the left common carotid artery arises from

apex of aortic arch

11

at what level do the common carotids branch into internal and external branches?

just below level of hyoid bone

12

3rd part of subclavian artery branch

dorsal scapular artery (50%)

13

the internal carotid arteries ____ have any branches in the neck

don't

14

what is the first branch of the ICA

ophthalmic a, branches at level of carotid siphon

15

within the cranial vault the ICA bifurcates into what

anterior cerebral and middle cerebral arteries

16

what is the first branch off the ECA and where is it located

superior thyroid artery located inferior to the tip of the greater horn of the hyoid

17

what is the major branch of the superior thyroid artery
what does it pierce and with what

superior laryngeal artery, pierces thyrohyoid membrane along with internal laryngeal nerve

18

facial and lingual artery location

lingal artery arises from the ECA alone or along with facial artery
-lingual artery is posterior to tip of hyoid, facial is superior

19

occipital artery

comes off ECA

20

where does the posterior auricular artery arise

from ECA at level of apex of styloid process
-full of parotid gland

21

branches of the ECA

superior thyroid a
facial a
lingual a
occipital a
posterior auricular a
superficial temporal artery
maxillary artery

22

what are the 2 terminating branches of the ECA

superficial temporal a
maxillary a

23

what are the 3 portions of the maxillary artery

1) mandibular
2) pterygoid
3) sphenopalatine

24

what does the maxillary artery supply

infratemporal fossa contents
posterior 2/3 nasal cavity
hard palate

25

what important artery branches off mandibular portion of maxillary a

middle meningeal a (ruptures in epidural hematoma)

26

what does the external jugular vein drains
and empties into what

neck, face, and part of brain
-empties into subclavian or brachiocephalic veins

27

what dumps into the external jugular vein

retromandibular vein, posterior auricular vein, pterygoid plexus of veins, anterior jugular vein

28

what is the retromandibular vein formed by

superficial temporal and maxillary veins

29

where does the internal jugular vein go

jugular foramen to btwn the sternoclavicular heads of SCM

30

at the base of the skull what cranial nerves are between internal jugular vein and internal carotid artery

IX-XII

31

superior bulb of IJC has/doesn't have valve
-location

doesn't have a valve
jugular fossa

32

inferior bulb ____ have valve

does have valve
-btwn SC heads of SCM

33

pericervical lymph nodes form collar of ___ LNs around ____
-drain into

superficial LNs around base of head
-drain into deep cervical nodes

34

superficial cervical LNs location
and drain to what

adjacent to external jugular vein in posterior triangle
adjacent to anterior jugular vein in anterior triangle
-drain into deep cervical LNs

35

deep cervical LNs location and 2 most important groups

along length of internal jugular vein
-jugulo-digastric (tonsillar)
jugulo-omohyoid nodes

36

the thoracic duct runs in front of ____ and behind ____ on ___ side

anterior scalene
carotid sheath
left

37

thoracic duct receives lymph from where

left side of head and all of body except right upper extremity and head
-