Neurobiology

Question 1

General Functions of Brain
~ % of body weight (1100-1700 gm)
~ % of oxygen consumption
~ % of cardiac output
~ % of glucose consumptioBrain is 
highly active

Answer 1

2% of body weight (1100-1700 gm)
~20% of oxygen consumption
~17% of cardiac output
~60% of glucose consumptioBrain is 
highly active

Question 2

What kind of blood flow to is related to brain activity

Answer 2

Cerebral

Question 3

Neurons
are main basis for communication in brain; How many are there?
.
Synaptic contacts between neurons can be How many -fold more?

Answer 3

100 billion

1000

Question 4

What kind of cells are..?
- are supportive cells intimately associated with
neurons; about as many as neu
rons

Answer 4

Neuro-glial cells

Question 5

What are the various types of neuro-glial cells?

Answer 5

astrocytes, oligodendrocytes, Schwann cells, ependymal cells,

Question 6

What type of neuro-glial cells regulate ion and neurotransmitter levels, and guide
neurons during development

Answer 6

Astrocytes

Question 7

What type of neuro-glial cells myelinate axons in brain and spinal cord

Answer 7

oligodendrocytes

Question 8

What type of neuro-glial cells myelinate axons in peripheral nerves

Answer 8

Schwann cells

Question 9

What type of neuro-glial cells line ventricles and make cerebrospinal fluid (CSF)

Answer 9

ependymal cells

Question 10

What type of nervous system cells are resident macrophages, derive from mesoderm, and increase
with neuroinflammatory response during injury

Answer 10

Microglia

Question 11

What type of nervous system cells (along with other cells associated with blood vessels) form vessel walls and blood-brain barrier?

Answer 11

Endothelial cells