Unit 4 Lecture 1 Review

What is a nerve cell?

• axon

• neuron

• dendrite

• myelin

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Which 2 are parts of the central nervous system?

• brain

• nose

• spinal cord

• left big toe

Cranial nerves and spinal nerves are part of the peripheral nervous system.

• True

• False

The main function of the nervous system

• send messages to and from the brain and spinal cord to and from the body

• break down food to be used by the body

• remove wastes from the body

• all of these

The part of the neuron that receives stimulus is the _______________

Which part of the neuron transmits impulses to other neurons?

• axon

• cell body

• dendrite

• node

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Which of the following is a function of the nervous system?

• gathers information

• processes information

• transmits information

• all of the above

The part of the body that integrates the information it receives from all over the body in order to make decisions is called the __________________

• peripheral nervous system

• sympathetic nervous system

• central nervous system

• parasympathetic nervous system

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The two major parts of the nervous system are the

• brain and spinal cord

• central and somatic nervous systems

• sympathetic and parasympathetic systems.

• peripheral and central nervous systems

Dr. Vazquez is examining a cell from the nervous system of an animal. He notices that at one end of the cell body is a long, fibrous strand of tissue. He immediately recognizes this as an axon that is responsible for

• carrying signals away from the cell body

• receiving signals from other cells and carrying them toward the cell body.

• determining the speed at which an action potential will travel

• determining whether the cell inhibits or excites neighboring neurons

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