Vocab

• Neuron


   a cell in the brain and nervous system that sends and receives information throughout the body
• Electric Impulse


  a sudden event that can trigger mechanical force
• Synapse


  a junction between two neurons that allows for the transmission of information
•  Reflex


  an involuntary, unplanned sequence or action and nearly instantaneous response to a stimulus.
• Motor


  a nerve cell in the brain and spinal cord that controls muscle movement
• relay neuron


  carry nerve impulses within the central nervous system.
• Sensory Neuron


  carry electrical signals - nerve impulses - towards the central nervous system (spinal cord and brain).
• CNS


   stands for central nervous system, which is the part of the nervous system that includes the brain and spinal cord: