Structure And Function Of Cell Of The Nervous System

Question 0

Cells that process info

Answer 0

Neuron

Question 1

Nervous system cells

Answer 1

Neurons

Glia

Question 2

Cells that provide support, structure and nourishment

Answer 2

Glia

Question 3

3 types of neuron cells

Answer 3

Sensory neuron
Interneuron
Motor neuron

Question 4

Cells located within CNS that form circuits between other neurons

Answer 4

Interneuron

Question 5

3 main types of glial cells

Answer 5

Astrocytes (star CNS)
Microglia (clean uppers/PAC man CNS)
Oligodendrocytes (forms myelin sheaths CNS)

*schwann cells- only in PNS wraps around itself

Question 6

Fatty tissue that holds neurons in place

Answer 6

Astrocyte

Question 7

Smallest of the glial cells, act as phagocytes

Answer 7

Microglia

Question 8

Forms myelin sheaths

Answer 8

Oligodendrocytes

Question 9

Electrical communications are

Answer 9

Within neurons

Question 10

Chemical communications are

Answer 10

Between neurons

Question 11

Movement of ions

Answer 11

Electrical potentials

Question 12

Na+ channels open

Answer 12

EPSPs

Question 13

Cl- channels open

Answer 13

IPSPs

Question 14

Summation of synaptic potentials

Answer 14

Action potentials

Question 15

Reduction of the membrane potential of a cell from it’s normal resting potential (toward zero)

Answer 15

Depolarization

Question 16

Membrane potential that results in depolarization

Answer 16

Excitatory

Question 17

Increase in the membrane potential of a cell relative to normal resting potential

Answer 17

Hyperpolarization

Question 18

All or none law

Answer 18

Once an action potential is triggered in axon it is propagated to the end of the nerve fiber (axon)

Question 19

How is an action potential conveyed across a myelinated axon?

Answer 19

It travels much faster

Question 20

Saltatory Conduction

Answer 20

Conduction of action potentials by myelinated axons