Nervous System

Question 1

What are temporal summations

Answer 1

Temporal: Same space / Different time

Question 2

Spatial summations

Answer 2

Spatial: Different space / Same time

Question 3

Sodium/potassium pump

Answer 3

3 Na+ out/ 2 K+ in

Question 4

Where are astrocytes located and what do they do?

Answer 4

In glial cells.
Blood-brain barrier. Controls solutes moving
from bloodstream –> nervous tissue.

Question 5

Role of ependymal cells

Answer 5

The barrier between cerebrospinal fluid and

interstitial fluid of the CNS.

Question 6

Microglia

Answer 6

Digest waste in CNS.

Question 7

Schwann Cells:

Answer 7

Myelinated PNS

Question 8

Oligodendrocytes:

Answer 8

CNS, makes myelin.

Question 9

White Matter:

Answer 9

Myelinated sheaths.

Question 10

Grey Matter:

Answer 10

Cell bodies and dendrites. Unmyelinated.

Question 11

Brain:

Answer 11

White deep / Grey outer

Question 12

Where is grey matter and white matter located in the spinal cord?

Answer 12

Grey deep / White outer

Question 13

Monosynaptic:

Answer 13

Sensory neuron –> Motor neuron

Question 14

Polysynaptic:

Answer 14

Sensory –> interneuron –> motor

Question 15

What are the neuron transmitters released in preganglionic neuron in sympathetic

Answer 15

Acetylcholine

Question 16

What neurotransmitter(s) is released in the sympathetic nervous system postganglionic?

Answer 16

Epinephrine and norepinephrine

Question 17

Which neurotransmitters are released preganglionic in the parasympathetic nervous system

Answer 17

Acetylcholine

Question 18

What neurotransmitter is released postganglionic in the parasympathetic nervous system?

Answer 18

Acetylcholine