neurons

• What are neurons specialized for?

  Receiving and transmitting information
• How many neurons are in the human nervous system?

  100 billion neurons
• Where are 80% of neurons located in the human body?

  In the brain
• How do neurons provide communication in the nervous system?

  By transmitting signals electrically
• What are the structural differences in neurons?

  • No myelin sheath
  • Receptor cell processes info from senses
  • Axon terminal buttons form synapses
  • Cell body located in the middle
• What type of neurons are sensory neurons classified as?

  Afferent neurons

  
• Where are sensory neurons found?

  In receptors like eyes and skin
• What do sensory neurons carry to the spinal cord and brain?

  Nerve impulses
• What happens to nerve impulses when they reach the brain?

  They are translated into sensations
• Why do some sensory neurons stop at the spinal cord?

  To allow quick reflex actions
• What is the role of relay neurons?

  Connect sensory input and motor output

  
• Where are relay neurons located?

  In the brain and spinal cord
• What do motor neurons control?

  Muscle movements
• Where do motor neurons start?

  In the central nervous system
• What do motor neurons release when stimulated?

  Neurotransmitters
• What do neurotransmitters bind to on muscles?

  Receptors on the motor end plate
• What is the result of neurotransmitters binding to muscle receptors?

  Trigger a response leading to movement
• What are the pathways for sensory and motor neurons?

  • Sensory neurons: Afferent pathway
  • Motor neurons: Efferent pathway
• What do axon terminal buttons form with other neurons?

  A synapse
• What is the function of a synapse?

  Transmit information between neurons
• What are the possible answers related to neuron functions?

  1. Neurons are cells located in the body.
  2. Impulses travel through the axon.
  3. Dendrites receive impulses toward axon terminal buttons.
  4. Myelin sheath speeds up transmission.
  5. Sensory neurons convert information to neural impulses.
  6. Motor neurons release neurotransmitters for muscle movement.
  7. Sensory neurons are afferent; motor neurons are efferent.
  8. Axon terminal buttons form synapses for information transmission.