CNS vasc part 1 Flashcards Preview

anatomy block 4 part 3 > CNS vasc part 1 > Flashcards

Flashcards in CNS vasc part 1 Deck (46)
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1
Q
A
2
Q

vertebral arteries (R and L)

A

ascend through the transverse foramina of the cervical vertebra and enter the cranial cavity via the foramen magnum.

3
Q

internal carotid arteries

A

ascend through the neck to the base of the skull and enter the cranial cavity through the carotid canal.

4
Q

The vertebral arteries contribute to the ——-

circulation

A

The vertebral arteries contribute to the posterior circulation

5
Q

Vertebral arteries

A

, ascend through the transverse foramina of the cervical vertebra and enter the cranial cavity via the foramen magnum.

6
Q

pontomedullary junction,

A

the right and left vertebral arteries unite to form the basilar artery.

7
Q

The anterior and posterior spinal arteries

A

arise from the vertebral arteries

8
Q

supply the spinal cord

A

anterior and posterior spinal arteries

9
Q

travel midline spinal cord (

A

Anterior Spinal Artery

10
Q

travel just posterior to the dorsal horn of the spinal cord (bilateral)

A

Posterior Spinal Arteries

11
Q

spinal arteries braches from the vertebral artery provide

A

sufficient blood supply to the upper cervical spinal cord levels only.

12
Q

one anterior and two posterior spinal arteries extend —–to supply the spinal cord

A

one anterior and two posterior spinal arteries extend caudally to supply the spinal cord

13
Q

radicular arteries.

A

reinforce anterior and posterior spinal arteries

14
Q

radicular arteries

A

branches off of the posterior intercostal arteries.

15
Q

radicular artery at ~T12 spinal cord level

A

called the great radicular artery

may provide the entire arterial supply for the lumbosacral spinal cord.

16
Q

vertigo and ipsilateral deafness

A

occlusion of internal auditory or labyrinthine artery

17
Q

basilar artery terminates by bifurcating

A

into the two posterior cerebral arteries

18
Q

which of the following isnt a branch of the basilar art

Anterior inferior cerebellar artery

pontine arteries

Superior cerebellar artery

internal auditory or labyrinthine artery

Posterior inferior cerebellar artery

A

t Posterior inferior cerebellar artery

19
Q

anterior spinal artery, vertebral artery, PICA supply

A

Caudal medulla

20
Q

posterior spinal artery

A

Caudal medulla :

21
Q

pons is mainly supplied by branches of the —–

artery

A

pons is mainly supplied by branches of the basilar artery

22
Q

caudal pontine

A

anterior inferior cerebellar artery and

basilar artery

23
Q

rostral pontine levels

A

basilar artery and superior cerebellar artery

24
Q

Most of the midbrain is supplied by the —— —– —- and their branches

A

Most of the midbrain is supplied by the posterior cerebral arteries and their branches

25
Q

Blood supply to the most dorsal aspect of the midbrain arises from the ——- ——- ——-

A

Blood supply to the most dorsal aspect of the midbrain arises from the superior cerebellar artery.

26
Q

Supplies the occipital lobe and medial and inferior surface of the temporal lobe

A

Posterior cerebral artery (PCA) territory

28
Q

lesion to post column

A

vibration and position sense

29
Q

lesion to anterolateral pathways

A

pain and temp sense

motor loss

30
Q

lateral medullary syndrome

A

Wallenberg’ s Syndrome

31
Q

ischemia in the territory of the vertebral artery and/or PICA.

A

Wallenberg’s syndrome

33
Q

spinal trigeminal nucleus and tract of wallensurg syndrome

A

contralat body dec. pain and temp sense

34
Q

Spinothalamic tract of wallenburg syndrome

A

contralat body dec pain and temp sense

35
Q

hoarsenss and dysphagia

A

nucleus ambiguous of wallenburg syndrome

36
Q

ipsilateral dec taste

A

nucleus solitary of Wallenburg syndrome

37
Q

descending symp. fibers of wallenburg syndrome

A

ipsilateral horners syndrome

38
Q

inf cerebral peduncle, vestibular nuceli

A

ips ataxia, vertigo, nausea, nystagmus

39
Q

bilateral ventral pons ischemia

A

Locked-in Syndrome

40
Q

narrowing of basilar artery

A

Wallenburg syndrome

41
Q

he/she is only capable of eye movements.

A

Locked-in Syndrome

42
Q

pontomesencephalic reticular formation

A

spared in Locked-in Syndrome

43
Q

Locked-in Syndrome

A

consciousness is spared.

44
Q

only capable of eye movements

A

Locked-in Syndrome

45
Q

by bilateral ventral midbrain ischemia (cerebral peduncles)

A

Locked-in Syndrome

46
Q

secondary to lack of blood flow in the rostral basilar artery

A

Locked-in Syndrome

47
Q

The “Circle of Willis” connects the —– and —–

arterial cerebral circulation

A

The “Circle of Willis” connects the anterior and posterior arterial cerebral circulation

48
Q

©Both ICAs terminate by giving rise to

A

a middle cerebral artery (MCA) and anterior cerebral artery (ACA).