NEURO CYTOLOGY

• Each nerve fiber has
  • cell body
  • axon
  • Perikaryon

• neurons based on
  • cognitive neurons
  • vegetative neurons

nerve fibre names based on sequence

• first order , second order , third order : mainly used for sensory neurons
• preganglionic , postganglionic : autonomic nervous system

nerve fibre names based on location

• upper , lower motor neurons

nerve fibre names based on connection to and from

• almost all nerves are named on the basis of origin to termination that is from nuclei to nuclei.
• sensory neurons towards the brain
• motor neurons away from the brain

according to the length of axon

• golgi type 1 - long axons and short dendrites eg., pyramidal cells of cerebral cortex , purkinje cells , anterior horn cells
• golgi type 2 - short axons

according to number of processes

• unipolar
• bipolar
• multipolar

according to shape of cells

• stellate
• basket
• fusiform
• pyramidal