The Nervous System

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1. Give two examples of effectors.

  • Muscles and glands are effectors. Muscles contract, Glands secrete hormones.
  • Muscles and skin are effectors. Muscles contract, skin relaxes.
  • Muscles and organs are effectors. Muscles contract, Organs respond by changing.
  • Eyes and ears are effectors. Eyes detect light, Ears detect smell.
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2. Define what receptors do.

  • They send information to the CNS
  • They lose their energy and stop moving
  • They change stimulus energy into electrical impulses
  • They recieve the stimulus and respond accordingly

3. What is MSG? How is it detected?

  • Monosodium Glutamate is a chemical stimuli, which is detected with taste receptors
  • Myelin Sheath Glutamate is a chemical stimuli, which is detected with taste receptors
  • Monosodium Glutamate is a chemical stimuli, which is detected with sound receptors
  • Monosodium Glutamate is a pressure stimuli, which is detected with taste receptors

4. Give five examples of stimuli

  • Touch, Sound, Pressure, Change in Temperature, Chemical
  • Sight, Pain, Chemical, Temperature, Smell

5. What is the order of the neurone response?

  • Sensory, Reflex, Relay, Effector
  • Effector, Relay, Motor, Sensory
  • Sensory, Relay, Motor, Effector
  • Sensory, Motor, Relay, Effector

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