Chemistry- Nervous System Mindmap


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  • The Nervous System
    • The nervous system allows you to react to what goes on around you.
    • There are 5 sense organs.
    • Sense organs and receptors are different.
      • The eye is a sense oragan as it contains light receptors.
      • The Ear is a sense oragan as it contains sound receptors
    • The Parts of the Nervous system are:
      • Eyes- light receptors- sensitive to light they are like animal cells.
      • Ears- Sound receptors- sensitive to sound, change position due to sound.
      • Nose- Smell receptors- chemical stimuli
      • Skin- sensitive to; touch, pressure, pain and tempreture change.
      • Sensory Neurones- Nerve cells carry electrical impusles- central nervous system
      • Relay Neurons- Nerve cells carry sensory neurons.
      • Motor Neurons- Carry single from Central nervous system to muscles or glands.
      • Effectors- Muscles+ Glands are effectors
      • Tongue- Taste receptors- sensitive to salt, bitter, sweet and sour.
    • They all contain receptors- sensitive to stimuli, e.g. light energy.
    • Stimuli can be light, sound, touch, pressure, pain, chemical, position or temperature change.
  • The nervous system allows you to react to what goes on around you.

Comments

sain suresh

This is really helpful but next time can you split the info on the branches

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