2.1
1) What is a neuron and what does it do?
Nerve cells that enable you to think, plan, or even dream.
2) What are the three types of neurons of the nervous system?
Sensory neurons, motor neurons, and interneurons.
3) The nervous system has what two type of cells?
Neurons and glial cells.
4) What is the protective coating that covers many axons?
Myelin sheath, which speeds the transmission of neural impulses.
5) When the electrical impulse reaches the axon's terminal button, it triggers the release of
chemicals that either increase or decrease ________?
The likelihood that neighboring cells will fire.
6) Normal psychological functioning is dependent on neurotransmitter activity, which
can be _______?
Affected by factors like disease and drug use.
7) The nervous system is a massive communication network that connects _____?
Billions of neurons throughout......
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