Biology Topic 1: Human Biology

Includes:

Coordination and Control, Neurones/Nerves, Hormones/Glands, Menstrual Cycle, Fertility Treatments, Homeostasis, Negative/Positive Feedback Loops etc

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Reflexes

  • The most sensitive areas of your hands are your fingers
  • The Nervous System carries fast electrical impulses
  • Changes in your environment (stimulus) are picked up by your receptors (groups of cells which are sensitive to a stimulus)
  • Impulses travel along your sensory neurons to your CNS
  • The impulse is coordinated and the response travels back to an effector through motor neurons
  • Sense organs= eye, nose, mouth
  • Receptors= light receptors(eye), sound reflectors(nose)
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