Neural organization

• What is the nervous system made up of?

  • Central nervous system (CNS)
  • Peripheral nervous system (PNS)
• What is the CNS made up of?

  The central nervous system (CNS) is made up of the brain and spinal cord.
• What is the PNS made up of? nerves that connect the CNS with receptors, muscles and glands.
• What are neruons?

  Nerve cells.
• What are the three types of neurons in the spinal cord?

  Sensory neurons, motor neurons, and interneurons.
• What neuron is this?

  
• What neuron is this?

  
• what neuron is this?

  
• What do sensory neurons do?


  Transmits nerve impluses from receptors to the CNS.
• What do motor neurons do?

  Transmit nerve impluses from CNS to effectors (muscles or glands).
• What do interneurons do?

  Interneurons transmit signals between sensory neurons and motor neurons in the central nervous system.
• Where is the location of the sensory neurons?

  Enters at the back of spinal cord.
• Where is the interneuron found at?

  Found within the spinal cord.
• Where is the motor neuron found at?


  Exits from the back of spinal cord.
• What is the autonomic nervous system?


  The part of the peripheral nervous system that controls involuntary bodily functions.
• What are examples of the automonic nervous system?

  Stomach, Heart, Sweat glands, digestive track.
• What is the somatic nervous system?

  The somatic nervous system is responsible for voluntary movements
• What are examples of the somatic nervous system?

  Skeletal muscles
• What is the sympathetic nervous system?

  The part of the autonomic nervous system that prepares the body for fight or flight responses.
• What is the parasympathetic nervous system?

  Rest and digest.
• What are the 5 parts of a neuron?

  Dendrites, Cell body, Axon, Myelin sheath and Axon terminal.
• What does A represent in this diagram?

  
• What is the function of the cell body in a neuron?

  contains the nucleus and other cellular organelles.
• What is the function of the dendrite in a neuron?

  recieve nerve impulses from other neurons and transmit them to the cell body
• What is function of an axon in a neuron?

  Transmits nerve impulses away from the cell body towards the effectors (gland or muscle)
• What is the function of a myelin sheath in a neuron?

  A fatty layer that insulates and protects the axon and speeds up transmission of nerve impulses.
• What is the function of the axon terminal in a neuron?

  Buttons like ends of the axon that contain vesicles that house neurotransmitters.
• What does B represent in the diagram?

  
• What D represent in the diagram?

  
• What E represent in this diagram?

  
• What does F represent in this diagram?

  
• What is a synpse?


  A junction between two neurons.