5- CSF and Blood Supply

Question 1

ACA Supplies

Answer 1

Medial surface of frontal and parietal lobes

Corpus callosum

Question 2

PCA Supplies

Answer 2

Temporal lobe

Some occipital lobe

Midbrain

Question 3

MCA - Upper Supplies

Answer 3

Frontal and parietal lobes

Question 4

MCA- Lower Supplies

Answer 4

Temporal and occipital

Question 5

AChA Supplies

Answer 5

Optic tract
Choroid plexus in lateral ventrical
Thalamus
HPC

Question 6

Perforating (Ganglionic) Branches

Answer 6

Small branches off ACA, MCA, and PCA

Supplies:
Basal Ganglia
Internal capsule
Diencephalon

Question 7

PChA Supplies

Answer 7

Supplies choroid plexus of lateral and 4th ventricle

Question 8

Ischemic Stroke

Answer 8

Sudden blockage of blood flow

Question 9

Transcient Ischemic Attack (TIA)

Answer 9

Mini stroke

Temporary lack of perfusion

Clot forms and dissipates
Usually a warning sign for a larger stroke

Question 10

Hemmorhagic Stroke

Answer 10

Arterial rupture, often of small arteries

Question 11

Circumventricular Organs (CVOs)

Answer 11

Where systemic circulation can directly communicate with brain

Located around 3rd and 4th ventricles

Area postrema

Vascular organ of the lamina terminalis (OVLT)

Subfornical organ (SFO)

Median Eminence of HYP and post. pituitary

Pineal gland/epithalamus

Question 12

CVO- Area Postrema

Answer 12

Monitors blood for toxins

Induces vomiting

Sensory

Question 13

CVO- OVLT

Answer 13

Vascular organ of the lamina terminalis

Regulates fluid balance

Sensory

Question 14

CVO- SFO

Answer 14

Subfornical organ

Sensory

Question 15

CVO- Medial Eminence

Answer 15

Endocrine role

Question 16

CVO- Pineal Gland

Answer 16

Secretion of melatonin