nervous system

• a small pulse of electrical currents that flows through a neuron


  impulse
• the part of a neuron that carries impulses to other neuron's. 


  axon
• something a organisms nervous system can detect. anything that can trigger physical or behavioural changes.


  stimulus
• tissue in the nose that contains receptor cells for smells. they are a type of chemoreceptor.


  olfactory epithelium
• a behaviour that is manifested by living organisms which is the result of an external or internal stimulus.


  response
• determines responses to a stimulus. (decides what action to take.)


  coordinator
• a part of the body that detects stimuli. (nose, tongue, and eyes.)


  sense organs
• a column of nerve tissues that runs from the base of the skull, down the centre of the back.


  spinal cord
• an organ that acts in response to stimulus. (muscles and glands)


  effectors
• fibres made up of neurons which carry electrical signals from one part of the body to the other.


  nerve
• the part of the neuron that contains the nucleus. the function is to control all the functions of the neuron


  cell body
• the organ inside the head which controls all body functions. made up of billions of nerve cells and is protected by the cranium. made up of cerebrum, cerebellum and the brain stem.


  brain