Blood Vessels and Lymphatics: stephens Flashcards Preview

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

vertebral artery comes off what and goes where

A

off 1st part of subclavian artery

enters transverse foramen of C6-C1 and goes through foramen magnum to form the basilar artery

2
Q

causes of subclavian steal syndrome

A
  • obstruction of subclavian artery proximal to vertebral artery
  • episodic increase in periph circulatory demand in associated extremity (due to exercise
3
Q

vertebro-basilar insufficiency clinical signs and symptoms

A

dizziness
cranial nerve dysfunction
paralysis
loss of consciousness

4
Q

what comes off 1sat part of subclavian a

A

vertebral a
internal thoracic a
thyrocervical trunk

5
Q

what comes off the thyrocervical trunk

A

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
Q

the dorsal scapular artery is often a branch of what

A

the transverse cervical artery (50%)

7
Q

2nd part of subclavian artery

A

costocervical trunk

8
Q

costocervical trunk branches

A

deep cervical

supreme intercostal a

9
Q

the right common carotid artery begins where

A

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

10
Q

the left common carotid artery arises from

A

apex of aortic arch

11
Q

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

A

just below level of hyoid bone

12
Q

3rd part of subclavian artery branch

A

dorsal scapular artery (50%)

13
Q

the internal carotid arteries ____ have any branches in the neck

A

don’t

14
Q

what is the first branch of the ICA

A

ophthalmic a, branches at level of carotid siphon

15
Q

within the cranial vault the ICA bifurcates into what

A

anterior cerebral and middle cerebral arteries

16
Q

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

A

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

17
Q

what is the major branch of the superior thyroid artery

what does it pierce and with what

A

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

18
Q

facial and lingual artery location

A

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

19
Q

occipital artery

A

comes off ECA

20
Q

where does the posterior auricular artery arise

A

from ECA at level of apex of styloid process

-full of parotid gland

21
Q

branches of the ECA

A
superior thyroid a
facial a
lingual a
occipital a
posterior auricular a
superficial temporal artery
maxillary artery
22
Q

what are the 2 terminating branches of the ECA

A

superficial temporal a

maxillary a

23
Q

what are the 3 portions of the maxillary artery

A

1) mandibular
2) pterygoid
3) sphenopalatine

24
Q

what does the maxillary artery supply

A

infratemporal fossa contents
posterior 2/3 nasal cavity
hard palate

25
Q

what important artery branches off mandibular portion of maxillary a

A

middle meningeal a (ruptures in epidural hematoma)

26
Q

what does the external jugular vein drains

and empties into what

A

neck, face, and part of brain

-empties into subclavian or brachiocephalic veins

27
Q

what dumps into the external jugular vein

A

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

28
Q

what is the retromandibular vein formed by

A

superficial temporal and maxillary veins

29
Q

where does the internal jugular vein go

A

jugular foramen to btwn the sternoclavicular heads of SCM

30
Q

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

A

IX-XII

31
Q

superior bulb of IJC has/doesn’t have valve

-location

A

doesn’t have a valve

jugular fossa

32
Q

inferior bulb ____ have valve

A

does have valve

-btwn SC heads of SCM

33
Q

pericervical lymph nodes form collar of ___ LNs around ____

-drain into

A

superficial LNs around base of head

-drain into deep cervical nodes

34
Q

superficial cervical LNs location

and drain to what

A

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

35
Q

deep cervical LNs location and 2 most important groups

A

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

36
Q

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

A

anterior scalene
carotid sheath
left

37
Q

thoracic duct receives lymph from where

A