Neurons

• Dendrites


  Branch- like extensions from the nearon's cell body that recieve incoming nerve impulses from other neurons
• Soma/cell body


  The largest part of the neuron. It contains the nucleus
• Nucleus


  A structure located in the call body which contains the genetic info of the cell
• Myelin sheath


  oA lager of fatty tissue that surrounds the axon. It helps protect the axon and speed up action potentials
• Axon


  The long extensions from the cell body that carries taction potentials (electrical signals) towards the end of the neuron
• Nodes of Ranier


  Gaps between the myelin sheath that speed lep the transmission of an action potential by allowing it to jump between gaps.
• Axon terminal


  The end of the axon whereby the arrival of action potentials trigger the release of neurotranschitters. These chemicals communicate with nearby neurons by binding to receptors on their dendrites
• what is the location of the sensory Neuron


  The somatic division of the PNS
• Location of the Relay neuron

  The CNS
• The Location of the motor neuron

  The somatic and autonomic divisions of the PNS
• function of the sensory neuron

  Converts stimuli detected by sensory organs into electrical impules This info is then transmitted towards the relay neurons in the CNS Where it is consciously processed.
• Function of the relay neuron

  The thinking, feeling and deciding neuron that transmit info within the CNS. It analyses sensations how to respond, then sends this decision to motor neurons in the PNS to act out
• what is the function of a motor neuron

  Transitts tMessages about desired movement from relay neurons away from the CNS to skeletal muscles, thus allowing for movement They also connect with organs and glands to maintain bodily processes e.s. breathing