6.3.1.3 Relay Neurons

• What is the name of the structure that receives the stimulus in the sensory neuron?

  Receptor cell
• What is the primary function of relay neurons?

  To connect sensory neurons to motor neurons
• What is the function of the neurofibril node (node of Ranvier) in the motor neuron?

  • It allows for faster transmission of electrical signals along the axon through saltatory conduction
• If you wanted to study the detailed surface features of a neuron, which type of microscope would you use?

  Scanning electron microscope (SEM)
• What triggers the release of neurotransmitters at the end of a relay neuron's axon?

  The arrival of an electrical impulse
• How do relay neurons receive signals?

  Through neurotransmitters binding to receptors
• How does the structure of a motor neuron differ from a sensory neuron?

  Motor neurons have a cell body, dendrites, and a long axon that connects to muscle fibers
• What are the typical locations of relay neurons?

  In the spinal cord and brain tissue
• What happens after a relay neuron receives a signal?

  It sends an electrical impulse down its axon
• How does the structure of a motor neuron differ from a sensory neuron?

  Motor neurons have a cell body, dendrites, and a long axon that connects to muscle fibers
• What is the primary function of relay neurons?

  Passing messages between neurons
• How do relay neurons transmit messages between sensory and motor neurons?

  By efficiently conducting electrical impulses
• How does the structure of relay neurons facilitate their function?

  • Dendrites receive signals from other neurons
  • Cell body processes information
  • Axon conducts impulses quickly
  • Synaptic terminals release neurotransmitters
• How do relay neurons contribute to reflex actions?

  They pass messages from sensory to motor neurons
• What type of neuron is shown in the "Relay" section of the image?

  Pre-synaptic terminal
• What are relay neurons also known as?

  Interneurons
• How does a neuron transmit information?

  • Electrical signals travel along the axon
  • Neurotransmitters are released at the synaptic terminal
  • Neurotransmitters bind to receptors on the next neuron
  • This generates a new electrical signal in the next neuron
• What type of neuron is shown in the "Relay" section of the image?

  Pre-synaptic terminal
• What are the key characteristics of relay neurons?

  • Located exclusively in the CNS
  • Connect sensory and motor neurons
  • Found in spinal cord and brain tissue
  • Serve as middle link in neural pathways
  • Enable efficient signal transmission
• What happens when you touch something hot?

  Relay neurons help you move your hand away
• What is the role of relay neurons in synaptic transmission?

  They communicate signals between neurons
• Where are relay neurons located?

  In the central nervous system
• How does a neuron transmit information?

  • Electrical signals travel along the axon
  • Neurotransmitters are released at the synaptic terminal
  • Neurotransmitters bind to receptors on the next neuron
  • This generates a new electrical signal in the next neuron
• What are the main structural components of relay neurons?

  Dendrites, cell body, axon, synaptic terminals
• What does the cell body of a relay neuron contain?

  Nucleus and essential organelles
• What do neurotransmitters do after being released into the synapse?

  They bind to the next neuron
• What are the main parts of a neuron?

  • Cell body
  • Dendrites
  • Axon
  • Myelin sheath
• How do relay neurons contribute to quick reactions?

  They pass signals from sensory to motor neurons
• What is the role of the axon in relay neurons?

  It conducts electrical impulses
• What is the function of the myelin sheath in the sensory neuron?

  It insulates the axon to allow faster transmission of electrical signals
• If you wanted to study the detailed surface features of a neuron, which type of microscope would you use?

  Scanning electron microscope (SEM)
• Why is the positioning of relay neurons important?

  It enables efficient signal transmission in CNS
• What is the name of the structure that receives the stimulus in the sensory neuron?

  Receptor cell
• What covers the axon of relay neurons?

  Myelin sheath
• What are synaptic terminals responsible for in relay neurons?

  They release neurotransmitters
• What are the main parts of a neuron?

  • Cell body
  • Dendrites
  • Axon
  • Myelin sheath
• What role do relay neurons play in the flow of signals in the nervous system?

  They keep the signals flowing between neurons
• How do relay neurons function in neural pathways?

  They serve as the middle link in pathways
• What are the key functions of relay neurons?

  • Connect sensory and motor neurons
  • Found in the brain and spinal cord
  • Help coordinate quick responses and complex thought processes
• What is the function of the myelin sheath in the sensory neuron?

  It insulates the axon to allow faster transmission of electrical signals