The Nervous System - Chapter 3 Flashcards

1
Q

Neurons are….

A

Nerve cells which work electrically

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2
Q

Synapses are:

A

Gaps within nerves which work chemically

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3
Q

The nervous system work on an:

A

Electro-chemical basis

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4
Q

The CNS is…

A

The Central Nervous system

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5
Q

The CNS’s main functions are to:

A

Analyse sensory inputs/information and act on them if needed

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6
Q

The PNS is:

A

Peripheral Nervous System

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7
Q

The PNS is needed to…

A

Transfer messages from sensory nerves to the CNS as well as then sending back the correct reflex.

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8
Q

A reflex is?

A

An involuntary response to a stimulus

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9
Q

The ANS is?

A

Automatic Nervous System. Other names include, autonomic, autonomous and vegetative nervous systems.

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10
Q

The ANS is responsible for:

A

Controlling any involuntary actions, such as:

  • heart beat/pulse rate,
  • breathing,
  • blood pressure
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11
Q

ANS is split into:

A

Sympathetic and parasympathetic where the body prepares for a fight or flight situation

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