Neuro: Blood Supply And Case

Question 1

hemorrhage stroke is bleeding within the ___ or in ____ ____

Answer 1

Brain or in the subarachnoid space

Question 2

Hemorrhage strokes are acute and usually involve an injury? T or F

Answer 2

False, they are spontaneous

Question 3

Spontaneous hemorrhagic strokes can result from: 5 points

Answer 3

-uncontrolled hypertension
-cerebral amyloid angioplathy
-rupture of a saccular(berry) aneurysm
-arteriovenous malformations (AVM)
-transformation of ischemic stroke

Question 4

A hemorrhage can lead to a _______

Answer 4

Hematoma

Question 5

What are the two types of hematomas?

Answer 5

1. Epidural (extradural)
2. Subdural

Question 6

What layers do epidural hematoma occur between?

Answer 6

Blood between the skull and dura mater

Question 7

What layers do subdural hematomas occur between?

Answer 7

Between dura mater and arachnoid mater

Question 8

Hematomas are usually ___ and involve ____

Answer 8

Acute, injury

Question 9

Hematomas can lead to increase _________ _______

Answer 9

Intercranial pressue

Question 10

Ischemia is

Answer 10

Insufficient blood flow that leads to cell death

Question 11

What are the two major systems of vascular supply to the brain?

Answer 11

Internal carotid artery and vertebral artery (vertebrobasilar)

Question 12

The ICA supply ____ circulation to the brain

Answer 12

Anterior

Question 13

The ICA supply structures that are ____tentorial

Answer 13

Supratentorial

Question 14

What is the acronym for the ICA branches that supply the brain and what do the letters stand for?

Answer 14

O-ophthalmic artery **
P-posterior communicating artery
A-anterior choroidal artery
A- anterior cerebral artery
M- middle cerebral artery *- most off. In stroke

Question 15

What are the two parts of the ICA system for the brain

Answer 15

OPAAM and circle of Willis

Question 16

What are the arteries involved in the circle of Willis

Answer 16

-anterior communicating
-anterior cerebral arteries
-part of internal carotid arteries
- posterior communicating arteries
-part of posterior cerebral arteries
-basilar artery*

Question 17

The vertebral artery provides the ____ circulation of the brain

Answer 17

Posterior

Question 18

The vertebral artery supplies the ____tentorial structures

Answer 18

Infratentorial

Question 19

What are the branches of the vertebrobasilar brain supply

Answer 19

-vertebral artery
-posterior inferior cerebellar artery
-basilar artery
-pontine artery
-anterior inferior cerebellar artery (AICA)
-Labyrinthine artery
-superior cerebellar artery(SCA)
-posterior cerebral artery

Question 20

Which branch in the vertebrobasilar artery is supratentorial instead of infratentorial

Answer 20

The posterior cerebral artery

Question 21

At the vertebral level what arteries supply the spinal cord?

Answer 21

Anterior and posterior spinal arteries

Question 22

What is the typical sequence of sinuses starting from the superior sagittal sinus?

Answer 22

Superior sagittal sinus -> confluence of sinuses-> transverse-> sigmoid-> jugular

Question 23

Which sinuses go through the tentorium?

Answer 23

Confluence of sinuses and transverse

Question 24

Which sinus(es) goes through the falx cerebri?

Answer 24

Superior sagittal sinus

Question 25

Cerebral venous sinus thrombosis is a type of stroke involving …

Answer 25

The sinus system due to clot formation

Question 26

Cerebral venous sinus thrombosis (CVST) prevents drainage that causes the..

Answer 26

Breakdown of the BBB that can cause hemorrhage, ischemia, vasogenic edema, and cytotoxic edema

Question 27

What nerves does the walls of the cavernous sinus contain?

Answer 27

V1 V2 IV III VI Postganglionic sympathetic fibers from superior cervical ganglion