5- CSF and Blood Supply Flashcards Preview

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Flashcards in 5- CSF and Blood Supply Deck (14)
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1

ACA Supplies

Medial surface of frontal and parietal lobes

Corpus callosum

2

PCA Supplies

Temporal lobe

Some occipital lobe

Midbrain

3

AChA Supplies

Optic tract
Choroid plexus in lateral ventrical
Thalamus
HPC

4

Perforating (Ganglionic) Branches

Small branches off ACA, MCA, and PCA

Supplies:
Basal Ganglia
Internal capsule
Diencephalon

5

PChA Supplies

Supplies choroid plexus of lateral and 4th ventricle

6

Ischemic Stroke

Sudden blockage of blood flow

7

Transcient Ischemic Attack (TIA)

Mini stroke

Temporary lack of perfusion

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

8

Hemmorhagic Stroke

Arterial rupture, often of small arteries

9

Circumventricular Organs (CVOs)

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

10

CVO- Area Postrema

Monitors blood for toxins

Induces vomiting

Sensory

11

CVO- OVLT

Vascular organ of the lamina terminalis

Regulates fluid balance

Sensory

12

CVO- SFO

Subfornical organ

Sensory

13

CVO- Medial Eminence

Endocrine role

14

CVO- Pineal Gland

Secretion of melatonin