Nuerons

• What does the cell body of a neuron contain?


  It contains the nucleus and genetic material
• What is the function of mitochondria in a neuron?


  They provide energy to the neuron
• What are dendrites attached to?


  Cell body
• What do dendrites do?


  They receive input from other neurons
• What is an action potential?


  It is an electrical impulse that travels along the neuron
• What is the role of the axon in a neuron?


  It transmits electrical impulses away from the cell body
• Where does the nerve impulse get triggered in a neuron?


  At the axon hillock
• What is the myelin sheath?


  It is a layer of fatty deposits that insulates the axon
• What is the function of the myelin sheath?


  To speed up the rate of message transmission
• What are the breaks in the myelin sheath called?


  Nodes of Ranvier
• What are axon terminals?


  They are the endpoints of an axon that pass nerve impulses
• What do terminal boutons do?


  They pass nerve impulses to other neurons, muscles, or glands
• What do terminal boutons contain?


  Vesicles that store neurotransmitters
• What is the role of neurotransmitters in neural transmission?


  They facilitate communication between neurons
• What are the main components of a neuron and their functions?


  • Cell body: Contains nucleus and genetic material
  • Dendrites: Receive input from other neurons
  • Axon: Transmits electrical impulses away from the cell body
  • Myelin sheath: Insulates the axon to speed up transmission
  • Axon terminals: Pass nerve impulses to other cells
  • Terminal boutons: Contain vesicles storing neurotransmitters