Biopsychology - The Nervous System Flashcards

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1
Q

What is the nervous system & its main functions?

A
  • specialised network of cells
  • internal communication system
  • collects, processes & responds to information
    about the environment
  • coordinates functioning of different organs &
    body cells
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2
Q

What are the 2 main sub-systems of the nervous system?

A
  • The Central Nervous System (CNS)

- The Peripheral Nervous System (PNS)

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3
Q

What is the CNS & its functions?

A
  • comprised of brain & spinal chord
  • origin of complex demands & decisions
  • passes messages to & from the brain (spine)
  • connects nerves to the PNS
  • coordinated life functions & bodily processes
    (brain)
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4
Q

What is the PNS & its functions?

A
  • nerves outside of the brain & spinal chord
  • transmits information to & from CNS
  • has 2 divisions:
    • Autonomic
    • Somatic
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5
Q

What is the role of the Autonomic Nervous System (ANS)?

A
  • carries information to & from internal organs
  • sustains involuntary life processes
    (e. g. breathing)
  • divided into the:
    Sympathetic NS
    Parasympathetic NS
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6
Q

What does the sympathetic nervous system do?

A

Generally increases bodily activities

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7
Q

What does the parasympathetic nervous system do?

A

Conserves the body’s natural activity levels by maintaining or decreasing it.

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8
Q

What is the role of the Somatic Nervous System?

A
  • Transmits information to & from senses
    (e. g. visual from eyes)
  • directs muscles to react & move
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