CHAPTER 3

Two types of major cells in the nervous system

• Glia

• Neurons

• Soma

• Synapse

The (choose below) contains the cell nucleus and much of the chemical machinery common to most cells.

This part of the neuron transmits impulses away from the soma to other neurons, muscles, or glands.

• synapse

• axon

• soma

• dendrite

Glia are cells found throughout the nervous system that provide various types of support for neurons.

• Glia are support cells in the nervous system.

• Glia are the main type of neuron.

• Glia are responsible for transmitting signals.

• Glia are only found in the brain.

What is the minimum time after an action potential during which another action cannot begin?

• Action potential threshold

• Absolute Refractory period

• Synaptic delay

• Neurotransmitter release time

True or false: neural impulses follow the all-or-none law.

Microscopic gap between the terminal button of one neuron and the cell membrane of another neuron.

• dendrite

• neurotransmitter

• synaptic cleft

• axon

Common neurotransmitters

• Endorphins

• Acetylcholine

• GABA

• Glutamate

• Monoamines

The peripheral nervous system is made up of nerves that lie outside the brain and spinal cord. It consists of

• The voluntary and involuntary nervous systems.

• The sensory and motor nervous systems.

• The central and peripheral nervous systems.

• The somatic and autonomic nervous systems.

The central nervous system lies within the skull and spine. It is made up of the

• stomach and intestines

• brain and spinal cord

• kidneys and liver

• heart and lungs