Chapter 3 Neurons

Question 1

Cells in the nervous system

Answer 1

Glial and Neurons

Question 2

Neurons

Answer 2

The nerve cells that handle information processing

Question 3

Mirror Neurons

Answer 3

They are activated when we perform an action and when we watch someone else perform that same action

Question 4

Glial Cells (glia)

Answer 4

The other type of cell in the nervous system.
Provide support, nutritional benefits, other function and keeps neurons running smoothly

Question 5

Cell body

Answer 5

Contains the nucleus
Directs the manufacture of substance that neuron needs for growth and maintenance

Question 6

Dendrites

Answer 6

Treelike fibers projecting from the neuron, which receives info and guides it to the neurons cell body

Question 7

Axon

Answer 7

Part of the neuron that carries info away from the cell body towards other cells

Question 8

Myelin sheath

Answer 8

A layer of fat cells that encases and insulates most axons

Question 9

Resting Potential

Answer 9

The stable, negative charge of inactive neuron

Question 10

Action potential

Answer 10

The brief wave of positive electrical charge that sweeps down the axon

Question 11

All of nothing principle

Answer 11

Once the electrical impulse reaches a certain level of intensity it fires and moves all the way down the axon without losing any intensity

Question 12

Synapses

Answer 12

Tiny space between the neurons
Gaps between neurons are synaptic gaps

Question 13

Neurotransmitter

Answer 13

Chemical substances that are stored in very tiny sacs within the terminal buttons and involved in carrying info across a synaptic gap to the next neuron

Question 14

Neural Networks

Answer 14

network of nerve cells that integrate sensory input and motor output

Question 15

what are neurons and what are their 3 parts