1 / 12

Histology of the Nervous System

Histology of the Nervous System. Divisions of the Nervous System Anatomically CNS: Brain and Spinal cord PNS : Nerves and Ganglia Histologically Nerve cells Glial cells. Neurons Are the unit structure and function

marvel
Télécharger la présentation

Histology of the Nervous System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Histology of the Nervous System

  2. Divisions of the Nervous System Anatomically CNS: Brain and Spinal cord PNS : Nerves and Ganglia Histologically Nerve cells Glial cells

  3. Neurons Are the unit structure and function Function:Reception, Processing and Transmission of nerve stimuli Triggering certain cell activity Release of neurotransmitters Parts: Cell body Dendrites Axon- Aroriziation, Bouton They vary in shape They vary in size (5-150 µm)

  4. Neurons can be classified Morphologically: Multipolar Bipolar Pseudounipolar Functionally: Motor Sensory Interneurons

  5. Neuron consists of: Cell body:the trophic center Dendrites:Receive and process of signals many arborizations Dendritic spines Dendritic transport Axon: Structure Anterograde flow- Slow for proteins and actin,tubulin Medium for mitochondria Fast for neurotransmitters,AA, vesicles Retrograde flow Motor proteins- Kinesin and dyenin

  6. Synapses Structure Types: Chemical and Electrical Excitatory and Inhibitory Symmetrical and asymmetrical

  7. Glial Cells Oligodendrocytes Schwann cells Astrocytes Ependymal cells Microglia

  8. Nerves Consists of nerve fibers Endoneurium Perineurium Epineurium Nerve fibers Myelinated, Node of Ranvier Unmyelinated

  9. Ganglia Structure: Cells, axons, Satellite cells Types: Sensory Autonomic

  10. Clinical Application Multiple Sclerosis and Guillain-Barre syndrome Nerve Tissue Tumors Medulloblastoma Glioma (Astrocytoma) Schwannoma

More Related