Blood Vessels and Lymphatics Flashcards

0
Q

R common carotid and R subclavian vein come off the _____

A

brachiocephalic trunk (artery)

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1
Q

Inferior thyroid artery supplies blood to the_______ and has a close relationship with_______

A

thyroid gland

recurrent laryngeal nerve

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2
Q

L common carotid and L subclavian come off the _______

A

aorta

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3
Q

Structures posterior to anterior scalene (2)

A

subclavian a

brachial plexus

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4
Q

Structures anterior to anterior scalene (2)

A

subclavian vein

phrenic nerve

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5
Q

The three parts of subclavian a are divided by

A

anterior scalene m.

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6
Q

First branch off subclavian a

A

vertebral a

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7
Q

Vertebral artery courses through _______ and merges to form the ______

A

CV 6-1

basilar artery

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8
Q

Vertebral artery supplies ____% of blood to the brain and is responsible for the _______circulation

A

20

posterior

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9
Q

Subclavian Steal Syndrome

A

due to obstruction of the subclavian a, proximal to the vertebral a
EPISODIC increase in peripheral circulatory demand in associated extremity
due to physical work/exercise
SHUNTING of blood from the vertebro-basilar circulation into distal subclavian a.
can cause vertebrobasilar insufficiency

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10
Q

Vertebro-basilar insufficiency

A

decrease in blood flow to the brain
may result in coma, quadriplegia, numerous cranial abnormalities
(dizziness, CN dysfunction, paralysis, loss of consciousness)
type of ischemia
an episode may result in transient or permanent neurological damage

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11
Q

Second branch off subclavian a

A

Thyrocervical trunk

branching is variable

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12
Q

what important branch off thyrocervical trunk runs with an important nerve?

A

inferior thyroid artery running with recurrent laryngeal nerve

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13
Q

Inferior thyroid a gives off what branches

A

ascending cervical artery

inferior laryngeal artery

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14
Q

The recurrent laryngeal nerve enters the larynx with what artery

A

inferior laryngeal artery

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15
Q

Does the internal carotid artery have branches in the neck

A

no

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16
Q

The internal carotid artery supplies the brain via the _____ portion of the circle of willis

A

anterior

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17
Q

The internal carotid gives off its first branch________ and then (in the cranial vault) bifurcates into

A

ophthalmic a
anterior cerebral a
middle cerebral a

18
Q

the ICA supplies _____% of blood to the brain via the circle of willis

A

80

19
Q

The Circle of Willis is

A

asymmetrical and incomplete

20
Q

Changes in cerebral blood are ________ to a degree

A

autoregulated
significant shunting of blood from on region of circulation to another may result in hyperperfusion and edema

input must =output

21
Q

cerebral arteries are ____ arteries, each with their own _____

A

end

territory

22
Q

Three important branches of external carotid a

A

Superior thyroid a
superficial temporal a
maxillary a.

23
Q

first branch of External carotid a

A

Superior thyroid a (blood supply to the thyroid)

24
Q

major branch of superior thyroid artery

A

superior laryngeal artery, which pierces the thyrohyoid membrane along with internal laryngeal n

25
Q

The two terminal branches of external carotid artery are

A

superficial temporal artery

maxillary artery

26
Q

important branch of the first part of maxillary artery

A

middle meningeal artery

27
Q

terminal branch of maxillary artery

A

sphenopalatine artery

28
Q

sphenopalatine artery supplies

A

it is major arterial supply to the posterior 2/3 of the nasal cavity
(posteriolateral wall of nasal cavity, and nasal septum)

29
Q

veins from face and neck will eventually go into

A

IJV or brachocephalic vein

30
Q

EJV made of

A
retromandibular vein 
maxillary vein
pterygoid plexus
posterior auricular vein 
anterior jugular vein
31
Q

Superior bulb of the IJV ______ have a valve. Inferior bulb of the IJV_____ have a valve.

A

does not

does

32
Q

at the base of the skull, CN IX-XII are located between

A

IJV and ICA

33
Q

Deep cervical lymph nodes are intimately associated with_____

A

IJV

34
Q

Tributaries of IJV

A

facial vein
lingual v
superior and middle thyroid vv
right lymphatic trunk and left thoracic duct also empty into IJV

35
Q

Pericervical lymph nodes

A

“collar” around base of head
drain directly or indirectly to deep cervical lymph nodes
regionally named (ie submandibular)

36
Q

Superficial cervical lymph nodes

A

two groups adjacent to external jugular (posterior)
adjacent to anterior jugular (anterior)
drain into deep cervical lymph nodes

37
Q

Deep cervical lymph nodes have two groups

A

jugulo-digastric

jugulo-omohyoid

38
Q

Deep cervical lymph nodes are located along the length of

A

IJV

39
Q

Jugular trunk (lymphatic) drains into the _______ on the left and the ________ or ______ on the right

A

thoracic duct
right lymphatic duct
IJV/ subclavian vein junction

40
Q

Thoracic duct is found only on what side

A

Left

41
Q

Thoracic duct receives lymph from

A

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

42
Q

lymph from the right UE and right side of the head drains to

A

right lymphatic duct