BBB, arterial blood supply, venous drainage

Question 1

What structures lie in the subarachnoid space?

Answer 1

Arteries

Question 2

What does the pia mater act as a barrier between at the level of capillary network?

Answer 2

barrier between blood vessels and neurological tissue

Question 3

What 2 pairs of vessels supply the skull?

Answer 3

Vertebral arteries

internal carotid arteries

Question 4

What % does the vertebral arteries supply?

Answer 4

20%

Question 5

What % does the internal carotid arteries supply?

Answer 5

80%

Question 6

What arteries arise at the bifurcation of the common carotid?

Answer 6

Internal carotid arteries

Question 7

What artery does the internal carotid arteries arise from?

Answer 7

Common carotid

Question 8

At what level does the common carotid artery bifurcate to form the internal carotid arteries?

Answer 8

At the upper border of the thyroid cartilage

Question 9

Where does the internal carotid artery enter once ascended through the base of the skull?

Answer 9

The temporal bone

Question 10

Where does the internal carotid artery lie once entered into the temporal bone?

Answer 10

The carotid canal

Question 11

What does the internal carotid artery had pierced the dura what does it form?

Answer 11

Roof of the cavernous sinus

Question 12

What structure forms the roof of the cavernous sinus?

Answer 12

The internal carotid artery

Question 13

What terminal branches does the internal carotid artery divide into?

Answer 13

anterior and middle cerebral arteries

Question 14

What does the anterior cerebral arteries supply?

Answer 14

Corpus callosum and the medial aspects of the hemispheres

Question 15

Which terminal branch of the internal carotid artery is the largest?

Answer 15

Middle cerebral artery

Question 16

Which artery supplies majority of the lateral surface of the hemispheres?

Answer 16

Middle cerebral artery

Question 17

What is the name of the artery that connects the 2 anterior cerebral arteries?

Answer 17

Anterior communicating arteries

Question 18

What artery does does the vertebral arteries arise from?

Answer 18

The subclavian artery

Question 19

Where does the vertebral artery enter the skull?

Answer 19

The foramen magnum

Question 20

What artery is formed when the 2 vertebral arteries unite?

Answer 20

The basilar artery

Question 21

Where do the 2 vertebral arteries unite?

Answer 21

Lower border of the pons

Question 22

What artery lies in the anterior median fissure?

Answer 22

Basilar artery

Question 23

Where do cerebral arteries first drain into?

Answer 23

the dural venous sinuses

Question 24

What does the dural venous sinus connect?

Answer 24

Major cerebral veins to the internal jugular veins

Question 25

What are the two types of cerebral veins?

Answer 25

The internal cerebral veins | The external cerebral vein

Question 26

Which type of cerebral veins run within the substance of brain tissue?

Answer 26

Internal cerebral veins

Question 27

Which type of cerebral veins run on the surface of the brain crossing the subarachnoid space?

Answer 27

The external cerebral veins

Question 28

Where can the cavernous sinus be located?

Answer 28

beside the body of the sphenoid bone

Question 29

Which sinus contains 5 cranial nerves

Answer 29

Cavernous sinus

Question 30

What does the cavernous sinus contain?

Answer 30

5 cranial nerves | internal carotid artery

Question 31

What gets drained into the cavernous sinus?

Answer 31

Blood from the face, upper teeth and nasal sinuses

Question 32

What are the 5 cranial nerves housed by the cavernous sinus?

Answer 32

``` Oculomotor Trochlear Opthalmic Trigeminal Abducens ```

Question 33

Which sinus can cause spread of infection to the brain?

Answer 33

Cavernous sinus