The Nervous System

Question 1

Which structure is at work when the body deals with reflex actions?

Revolt · Accepted Answer

the spinal cord

Question 2

Examine the words.impulse, presynaptic cell, neurotransmitters, receptors, postsynaptic cellWhat idea can be described using all the words listed?

Revolt · Accepted Answer

the transfer of information from one neuron to another

Question 3

Which is a function performed by the central nervous system (CNS)? Select all that apply.processing information that is received from the stimuli receptorsreceiving stimuli and making the body react to those stimulisending out information so that the body can react appropriately to stimulicoordinating reflexes and reactions to stimulisensing stimuli and causing reactions in the body

Revolt · Accepted Answer

processing information that is received from the stimuli receptors; sending out information so that the body can react appropriately to stimuli; coordinating reflexes and reactions to stimuli

Question 4

The diagram shows a nerve cell.

Revolt · Accepted Answer

C

Question 5

Which is an example of how the peripheral nervous system helps the body maintain its internal environment?

Revolt · Accepted Answer

Muscles contract rapidly to produce heat on a cold day.

Question 6

Which is a function of the central nervous system?

Revolt · Accepted Answer

controlling coordination in the body

Question 7

What happens to the body when motor neurons are injured?

Revolt · Accepted Answer

It loses muscle movement.

Question 8

Which function does a neuron perform in a human body?

Revolt · Accepted Answer

It generates electrochemical signals so that the body can react to stimuli.

Question 9

The sympathetic and parasympathetic nervous systems are both part of which division of the nervous system?

Revolt · Accepted Answer

the autonomic nervous system

The Nervous System Answers

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