Brain Metabolism, CSF, Blood-brain barrier

Question 1

Steal Syndrome

Answer 1

After prolonged ischemia, normal CO2 response fails, blood flows away from region where CO2 is elevated.

Question 2

PET (positron emission tomography) detects

Answer 2

glucose utilization

Question 3

SPECT (single photon emission tomography) detects

Answer 3

blood flow

Question 4

fMRI (functional magnetic resonance imaging) detects

Answer 4

blood oxygen level

Question 5

Ependymocytes

Answer 5

Create and secrete CSF
Beat cilia to circulate CSF through system
Line brain ventricles and central canal of spinal cord

Question 6

CSF mostly produced in ____ called ____

Answer 6

Modified ependymal cells

Choroid plexus

Question 7

Foramen of Magendie ((median/lateral) aperture of ventricle 4) empties into ____

Answer 7

Median

Cisterna magna/cerebellomedullary cistern

Question 8

Foramen of Luschka ((median/lateral) aperture of ventricle 4) empties into ____

Answer 8

Lateral

Pontine cistern

Question 9

CSF is absorbed by

Answer 9

Arachnoid granulations