chapter 2:Bio 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: alisham14Created on: 16-04-15 19:12 The nervous systen sense organs detect stimuli stimulus = change in environment CNS = where all info is sent Neurones tansmit info sent to the effectors sensory neurones = nerve cells cary signals- electrical impulses from receptors in sense organs to the CNS Relay neuron = nerve cells carry signals from sensory neuron to motor neuron Motar neuron = nerve cells carry signals fronm CNS to effector muscles/glands Effectors = muscles/glands- respond differently- musles contract in response to a nervous impulse > glands secret hormones 1 of 1
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