Cranial Circulation

Question 1

what is ataxia?

Answer 1

trouble walking (cerebellum affected) coordination off

Question 2

what drains blood from the brain to the body?

Answer 2

dural sinuses.

Question 3

cavernous sinus is innervated by what?

Answer 3

CN 3,4 and 6

Question 4

Huge arterial supply. brain vessels act like a what?

Answer 4

radiator

Question 5

main arterial supply is found where?

Answer 5

at the base of the brain.

Question 6

internal carotid artery is where?

Answer 6

anterior brain

Question 7

vertebral artery is where?

Answer 7

posterior brain

Question 8

what parts meet at the circle of willis?

Answer 8

anterior and posterior brain

Question 9

what is hypoxia?

Answer 9

20-30 seconds unconsciousness

Question 10

what is ischemic infarct?

Answer 10

3-4 minutes lack of blood tissue damage due to lack of oxygen

Question 11

arterial dilemination

Answer 11

clots form in aorta, carotids, vertebrals

Question 12

Brain gets its energy from what? Does it have stored energy?

Answer 12

glucose. No stored energy.

Question 13

ischemia–> infarct—> neucrosis (death) brain cell death

T or F

Answer 13

True

Question 14

There are white blood cells in the brain. True or False.

Answer 14

False

Question 15

PICA stands for what? Are blood clots common here?

Answer 15

posterior inferior carotid artery and yes blood clots common here.

Question 16

what are the symptoms of vertebral dissection?

Answer 16

Effects cerebellum….ataxia= have trouble walking, visual problem (diplopia). Can get better without surgery.

Question 17

thrombosis in cavernous sinus will affect what?

Answer 17

EOMs and carotid artery.

Question 18

for alsheimer disease what is the first thing to go?

Answer 18

taste and smell.

Question 19

common place for blood clots is?

Answer 19

PICA

Question 20

vertebral =posterior blood supply T or F

Answer 20

True

Question 21

cerebella artery= cerebellum T or F

Answer 21

True

Question 22

anterior communicating runs into what?

Answer 22

longitudinal fissure

Question 23

internal carotid becomes middle cerebral which runs into what?

Answer 23

lateral fissure

Question 24

Internal carotid arteries
- Anterior cerebral arteries
- Middle cerebral arteries
which circulation is this?

Answer 24

anterior circulation

Question 25

- Vertebral arteries - Basilar artery - Posterior cerebral arteries - Cerebellar arteries which circulation is this?

Answer 25

posterior circulation

Question 26

how big is the circle of willis?

Answer 26

1mm diameter

Question 27

Circle of willis equalizes blood pressure in the brain but wont save you from a stroke. T or F

Answer 27

True.

Question 28

stroke in posterior cerebral artery whats the symptoms?

Answer 28

ataxia and vision effected

Question 29

middle cerebral stroke what is effected? is this the most common stroke type?

Answer 29

yes the most common and SPEECH is effected. | loss of feeling and all other frontal lobe stuff.

Question 30

if anterior stroke what is effected?

Answer 30

LEGS MOTOR AND SENSORY loss from hips down

Question 31

if you knock out central part of the brain, what happens to the body?

Answer 31

one side of the body goes out.

Question 32

how long does it take to know how bad a stroke was?

Answer 32

3 months

Question 33

what type of stroke is rare but has great recovery?

Answer 33

hemi-stroke

Question 34

what is a TIA?

Answer 34

Trans- Ischemic Attack

Question 35

``` what is classified as a "warning"? Temporary ischemia in cerebral artery Loss of function of the affected area Pre-stroke Embolism (something that blocks blood supply ie. Air, blot clot, fat, Stroke), vasospasm where blood vessels usually constrict or contract (cause heart attack) Usually treated with blood thinners More focal ```

Answer 35

TIA

Question 36

focal means what?

Answer 36

blackout in one eye but then it comes back.

Question 37

what disease can cause one to lose vision in one eye?

Answer 37

multiple sclerosis

Question 38

"temporary heart attack"

Answer 38

angina

Question 39

Cerebral blood vessel rupture Aneurism (bulge in artery wall, bubble) will burst Subarachnoid or parenchymal Anticoagulants (not used for hemoratcic stroke) increase risk HTN (hypertension) increases risk Something burst, your bleeding out what type of stroke am I?

Answer 39

hemmorrhagic stroke

Question 40

what is a stroke?

Answer 40

aneurism burst

Question 41

what is an aneurism?

Answer 41

bulge of blood in artery

Question 42

``` Blockage in cerebral arteries Emboli: clots, fat, air (ischemia) TIA: Transischemic Attack (temporary blockage) DVT: Deep Vein Thromboses tPA: Tissue plasminogen activator Thrombolytic (clot buster) what type of stroke am I? ```

Answer 42

occlusive stroke

Question 43

what is DVT?

Answer 43

Deep Vein Thrombosis. Blood in your knees slows down when sitting.

Question 44

what is a TIA?

Answer 44

Transischemic attack which is a temporary blockage.

Question 45

what is a tPA?

Answer 45

Tissue plasminogen activator | Thrombolytic (clot buster)