Ventricles, Meninges, and Vascular Supply

Question 1

Midline connection between the two lateral ventricles of the brain

Answer 1

Foramen of Monro

Question 2

Describe the pattern of CSF flow in the ventricles

Answer 2

Lateral–> Foramen of Monro–> 3rd ventricle–> Aqueduct–> 4th ventricle

Question 3

CSF exits the 4th ventricle into the ________ and then into the ________

Answer 3

subarachnoid space; dural sinuses

Question 4

Inc. CSF in and/or around the brain due to the blockage of CSF flow; ventricles dilate according to where the obstruction is

Answer 4

Hydrocephalus

Question 5

Arteries and veins on the surface of the brain are in the…

Answer 5

subarachnoid space

Question 6

How are the capillaries in the CNS modified to form the Blood Brain Barrier (3 total)

Answer 6

Tight junctions (impermeable)
Thick BM
Astrocyte foot processes

Question 7

The Internal Carotid artery provides what 2 cerebral arteries (anterior blood flow)

Answer 7

Anterior Cerebral Artery

Middle Cerebral Artery

Question 8

The Veretebral and Basilar arteries provide what 4 cerebral arteries

Answer 8

Posterior Cerebral Artery
Superior Cerebellar Artery
Anterior Inferior Cerebellar Artery
Posterior Inferior Cerebellar Artery

Question 9

The arterial blood supply of the brain (ICA, Basilar, Vertebral) join at the ____________________ forming the Circle of Willis

Answer 9

Diencephalon

Question 10

What arteries compose the Circle of Willis

Answer 10

Anterior Cerebrals
Anterior Communicating
Internal Carotids
Middle Cerebrals
Posterior Communicating
Posterior Cerebrals

Question 11

Cerebral artery; lies in the Longitudinal/Sagittal fissure (between hemispheres) and supplies the medial Frontal and Parietal lobes

Answer 11

Anterior Cerebral Artery

Question 12

Which fissure has the Anterior Cerebral artery lie?

Answer 12

Longitudinal/Sagittal fissure

Question 13

What areas of the brain does the Anterior Cerebral artery supply?

Answer 13

medial Frontal and Parietal lobes

Question 14

Cerebral artery; lies in the Lateral fissure (between frontal and temporal lobes) and spreads over lateral surface of hemispheres; supplies lateral Frontal, Parietal and Temporal lobes; as such, it supplies the Broca’s and Wernickes areas (language); also has Lenticulostriate arteries that pierce into Basal Ganglia and Internal Capsule

Answer 14

Middle Cerebral Artery

Question 15

Special branches of the Middle Cerebral Artery that pierce deep into the brain, while in the lateral fissure, to supply the Basal Ganglia and Internal Capsule

Answer 15

Lenticulostriate arteries (“Deep Penetrating” arteries)

Question 16

Which fissure contains the Middle Cerebral artery

Answer 16

Lateral fissure (between frontal and lateral lobes)

Question 17

What portions of the brain are supplied by the Middle Cerebral Artery

Answer 17

Lateral Frontal lobe, Parietal lobe and Temporal lobe

Question 18

What cerebral artery supplies the Broca’s and Wernicke’s areas

Answer 18

Middle Cerebral artery

Question 19

Blood supply for the Internal Capsule

Answer 19

Middle Cerebral Artery–> Lenticulostriate arteries

Question 20

Functions of the Internal Capsule

Answer 20

Ascending Sensory tracts (Spinothalamic and Dorsal Columns)
Corticospinal tracts (Ventral and Lateral)

Question 21

Cerebral artery; lies on inferior surface of Temporal lobe and goes posteriolaterally; supplies the Occipital and Temporal lobes

Answer 21

Posterior Cerebral Artery

Question 22

What parts of the brain does the Posterior Cerebral Artery supply

Answer 22

Occipital

Temporal