Brain vasculature 10/4/16 Flashcards Preview

Anatomy HFF > Brain vasculature 10/4/16 > Flashcards

Flashcards in Brain vasculature 10/4/16 Deck (42):
1

What are the two main arteries that supply the brain?

-Internal Carotid Artery
-Vertebral Artery

2

In a simplified version how many arteries supply the cortex of the brain?

three

3

In a simplified version how many arteries supply the cerebellum?

three

4

In a simplified version how many arteries supply the brainstem?

A bunch

5

What are the three arteries that supply the cerebral portion of the brain?

-Middle Cerebral artery
-Anterior Cerebral Artery
-Posterior Cerebral Artery

6

What are the three arteries that supply the cerebellum?

-Superior cerebellar
-Anterior Inferior Cerebellar Artery
-Posterior Inferior Cerebellar Artery

7

What three arteries branch of off the internal carotid artery?

-Ophthalmic artery
-Anterior Cerebral
-Middle Cerebral

8

What artery branches off of the Vertebral Artery?

-Posterior Inferior Cerebellar Artery

9

What artery is it when the the two vertebral arteries come together?

-Basilar artery

10

What arteries branch off of the basilar artery?

-AICA
-SCA
-Posterior Cerebral

11

What five arteries make up the circle of willis?

-Anterior communicating
-Anterior Cerebral
-Internal Carotid Artery
-Posterior communicating
-Posterior cerebral

12

What two CN are found in the midbrain?

CN III
CN IV

13

What four CN are found in the Pons?

CN V
CN VI
CN VII
CN VIII

14

What four CN are found in the Medulla?

CN IX
CN X
CN XI
CN XII

15

What are three tests you can perform if a patient is unconscious to test arteries and CNs?

Midbrain - pupillary light reflex
-Pons - Corneal reflex
-Medulla - Gag reflex

16

What is the input and output CN if the pupillary light reflex?

CN II - Input
CN III - Output

17

What are the input and output CNs of the corneal reflex?

input V
output VII

18

What are the input and output CNs of the gag reflex?

input IX
output X

19

What arteries supply the the midbrain?

- Basilar artery
- Posterior cerebral artery

20

What arteries supply the pons?

-Basilar Artery
-AICA

21

What arteries supply the medulla oblongata?

-Anterior spinal artery
-Vertebral artery
-PICA

22

If you have damage to the Middle Cerebral Artery what happens?

You lose speech function if on the dominant side
-Motor and Sensory from the hips up

23

If you have damage to the Anterior Cerebral Artery what happens?

You damage the paracentral lobule which loses motor control of the lower limbs

24

If you have damage to the Posterior Cerebral Artery what happens?

- You will have damage to vision

25

T/F the brain can have watershed areas

True

26

What are the two Dura mater folds?

Falx cerebri
-Tentorium cerebelli

27

What does the Falx cerebri separate?

Hemispheres

28

What does the tentorium cerebelli separate?

The cerebellum from the occipital lobes

29

What is found within dura layers?

Cranial sinuses

30

What is the main sinus found at the stop of the brain?

Superior sagittal sinus

31

What sinus do you find below the superior sagittal sinus?

Inferior sagittal sinus

32

What sinus do you find running across (side to side) of the brain?

Transverse sinus

33

What is the final sinus you go through before you enter the Internal Jugular Vein?

Sigmoid sinus

34

What runs through the cavernous sinus?

-CN III
CN IV
CN V
CN VI
- ICA

35

What are two alternate drainage routes for the face?

-Cavernous sinus
-Pterygoid plexus

36

What happens if you get a clot in the cavernous sinus?

-Cavernous sinus thrombosis

37

What is the first CN affected by a clot in the cavernous sinus?

CN VI

38

What are emissary veins?

Veins that drain the scalp and then enter into the brain sinuses

39

What clinical problem can occur when the middle meningeal artery is damaged?

- Epidural hematoma

40

What clinical problem can occur when the bridging veins are damaged?

Subdural hematoma

41

What clinical problem can occur if you have ruptured an intracranial vessel?

- Subarachnoid hemorrhage

42

What clinical problem can occur if you have a disrupted arterial flow to a portion of cerebral parenchyma?

- Stroke