neurons

• neurons are electrical (action potentials)
• dendrites retrieve information from other neurons
• the nucleus stores DNA and controls the neuron function
• the cell body controls the cell function
• myelin sheath insulates signals, allowing them to be quick and fast
• the axon terminals sends information to other neurons
• a node of ranvier regulates ion exchange
• a neuron is made up of dendrites, the cell body, nucleus, myelin sheath, node of ranvier and the axon terminal
• structure 1 is a dendrite

  
• structure 5 is the axon terminal

  
• structure 4 is the node of ranvier

  
• structure 7 is the myelin sheath

  
• structure 8 is the nucleus

  
• the synapse is the connection point between one end of the neuron and the other; the end of one neuron connects to the cell body of another
• 1. signal to axon terminal
  2. neurotransmitter packed in vesicles
  3. neurotransmitters released and cross synapse
  4. neurotransmitters diffuse (joins) into dendrites
• neurotransmitters are chemical messengers. their job is to carry messages from one neuron to the next target cell
• structure 10 is the axon