section 1. (6) outline the role of the nervous system in detecting and responding to environmental changes Flashcards

1
Q

What is the function of the nervous system?

A

coordination- detects information about the organisms internal and external environment, transmits the information to the control centre to generate a response

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2
Q

what are the two parts of the nervous system?

A
  1. the CNS (central nervous system)

2. the PNS (peripheral nervous system)

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3
Q

what is the CNS?

A

the CNS consists of the brain and spinal chord. It receives and processes information and coordinates responses

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4
Q

what is the PNS?

A

consists of the nerves and the ganglia surrounding the brain. it transmits information between the CNS and the interneurons/ effectors.

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5
Q

What do receptors do?

A

Detect changes and transmit information about them in the form of electrochemical nerve impulses tot eh CNS via sensory neurons

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6
Q

what does the CNS do with the information gathered from the receptors?

A
  • processes and transfers to effectors

- stimulates effector response

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