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Psychology > Nervous System > Flashcards

Nervous System Flashcards

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1
Q

What is the roles of the nervous system?

A
  1. Receive information
  2. Process information
  3. Respond to information
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2
Q

What are the two branches of the nervous system?

A
  1. Central nervous system (CNS)

2. Peripheral nervous system (PNS)

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3
Q

What is the further division of the CNS?

A
  1. Brain

2. Spinal cord

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4
Q

What is the further division of the PNS?

A
  1. Autonomic

2. Somatic

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5
Q

What is the further division of the autonomic nervous system?

A
  1. Sympathetic

2. Parasympathetic

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6
Q

What is the CNS?

A
  • The CNS consists of the brain and spinal cord which controls much of the rest of the nervous system.
  • Main role is to process info. from sensory systems & activate appropriate actions
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7
Q

What is the PNS?

A
  • The PNS consists of a range of nerves that distribute throughout the body from the brain and spinal cord.
  • Carries info. around body from CNS & sends info. back to CNS
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8
Q

What is the autonomic division of the PNS?

A

Everything that your body automatically does. This includes many body regulations. The autonomic part of the PNS is further divided into the sympathetic and parasympathetic systems.

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9
Q

What is the somatic division of the PNS?

A

Everything voluntary that you do.

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10
Q

What is the sympathetic division of the PNS?

A
  • Responds to stress
  • Increase of heart rate & blood pressure
  • Pupil dilation
  • Fight, flight & freeze
  • In times of stress it is more dominant than parasympathetic
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11
Q

What is the parasympathetic division of the PNS?

A
  • More dominant than the sympathetic system in times of rest & recovery
  • Aids in digestion and supporting body regulations
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12
Q

What are the functions of the spinal cord?

A
  • Pass sensory info. from PNS to brain

- Pass motor info. from brain back to PNS

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13
Q

What are reflexes and how do they occur?

A
  • Reflex is involuntary response to a stimulus
  • Nerves in spinal cord can bypass brain
  • This makes reflexes quicker
  • Reflexes minimise harm
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Psychology (7 decks)

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