Nerves

• Neurons

  Carry messages at high speed in the form of electrical impulses
• Nerves

  Many neurons grouped together
• Sensory neurons

  Gather information from receptors and sends the sensory information as nerve impulses towards the CNS
• Interneurons

  Found in the CNS

  Carry information between sensory and motor neurons
• Motor neurons

  Sends information away from the CNS to effectors
• Label

  A) Dendrite

  B) Soma

  C) Myelin Sheath

  D) Axon

  E) Axon Terminal Buttons

  
• Soma

  Processes information and decides if it should be passed on
• Dendrites

  Have a large surface area and receive messages from other neurons
• Axon

  Initiates impulses and conducts them away
• Axon terminals

  Have terminal buttons that contain neurotransmitters
• Myelin

  A white, fatty substance that forms the myelin sheath that is used to insulate the axon
• Synapse

  The gap that separates two neurons

  Messages pass across the synapse through chemicals called neurotransmitters that are contained in vesticles