Nerve Tissue

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  • Describe the classification of neurons based on shape. Give specific examples
    • Multipolar neurons: One axon and two or more dendrites: Motor neurons, interneurons
    • Bipolar neurons: One axon and one dendrite: Receptors for special senses (taste, smell, hearing, sight, equilibrium)
    • Pseudounipolar (Unipolar) neurons: One axon that divides close to the cell bodies into two long axonal branches; one extends to the periphery while the other extends to the CNS: Sensory nerves of the dorsal root ganglia and cranial nerve ganglia
Morphology of neurons
Morphology of neurons
  • What forms the blood brain barrier
    • Tight junctions between endothelial cells
    • PericytesBasal lamina of the endothelium
    • Astrocyte foot processes
Blood brain barrier
Blood brain barrier
  • List the examples of peripheral neuroglial cells
    • Schwann cells
    • Satellite cells
    • Terminal neuroglia (teloglia: associated with the motor end plate)
    • Enteric neuroglia (associated with the ganglia of the GIT)
    • Muller’s cells (found in the retina)
  • State examples of central neuroglial cells and state their respective functions
    • Astrocytes: Support neurons physically and metabolically in the CNS
    • Oligodendrocytes: Form and maintain myelin in the CNS
    • Microglia: Phagocytes
    • Ependymal cells: Produce CSF

Jeffrey Kalei
Jeffrey Kalei
Articles: 335

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