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Lab Session 9: Nerve Tissue 9.2.05

Lab Session 9: Nerve Tissue 9.2.05. Slide # 7 NH : Spinal (sensory) Ganglion (LFB-NR). 100x. Nissl granules (RER). Myelinated axons. Pseudounipolar neurons. 400x. Segregated cell bodies. CT layer. Satellite cells. Slide # 7 NH : Spinal (sensory) Ganglion (LFB-NR).

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Lab Session 9: Nerve Tissue 9.2.05

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  1. Lab Session 9: Nerve Tissue9.2.05

  2. Slide # 7 NH: Spinal (sensory) Ganglion (LFB-NR) 100x Nissl granules (RER) Myelinated axons Pseudounipolar neurons 400x Segregated cell bodies CT layer Satellite cells

  3. Slide # 7 NH: Spinal (sensory) Ganglion (LFB-NR) • Form a continuous layer around the cell bodies • A type of glial cell; isolates neurons from surrounding environment Large Pseudounipolar neuron Satellite cells Myelinated axons 400x 400x

  4. Slide #9 NH Sympathetic motor ganglion- rat (LFB-NR) • Multipolar neurons (>1 dendrite) • Small cell bodies with small eccentric nucleus • Few if any myelinated axons • Abundant synapses at cell body • Cell bodies are not segregated from axons and dendrites 100x

  5. Slide #10 NH Sympathetic motor ganglion- rat (LFB-NR) • Multipolar neurons (>1 dendrite) • Small cell bodies with small eccentric nucleus • Few if any myelinated axons • Abundant synapses at cell body • Cell bodies are not segregated from axons and dendrites Small, multipolar neuron dendrites

  6. Slide # 62: Nerve- monkey (osmic acid and nuclear red stain) 100x Longitudinal section 400x adipocytes • Schwann cells,myelin sheaths of axons,and adipocytesall stain dark Nodes of Ranvier

  7. Slide # 62: Nerve- monkey (osmic acid and nuclear red stain) • Note the 3 types of connective tissue layers associated with nerves 400x Cross-section epineurium Myelin sheaths appear empty due to lack of axon staining endonerium perineurium

  8. Slide #79 Esophagus Human (H&E) Parasympathetic Ganglia Embedded between longitudinal and circular layers Yusef Sayeed, M.P.H., M.Eng., E.I.T.

  9. Slide #93 Colon-Monkey (H&E Parasympathetic ganglion cell body Inner circular m. 10x Outer Longitudinal m. 40x Nerve Fibers

  10. Slide #63 Nerve Human (H&E) Note the whorled appearance of nerve fibers See gaps in the myelin sheaths to increase conduction velocity in many peripheral nerves Yusef Sayeed, M.P.H., M.Eng., E.I.T

  11. Slide #63 Nerve-Human (H&E) Peripheral Nerve Bundle Perineurium Epineurium Nerve Fibers Endoneurium BloodVessel 10x

  12. Slide #64 Nerve-Human (Masson’s Trichrome) Peripheral Nerve Bundle Perineurium Endoneurium (CT Surrounding individual Nerve fibers) Epineurium 10x

  13. Slide #1 Spinal Cord-dog (LFB,NR) White Matter Axon Hillock Gray Matter Nissl Substance (Pink Stuff) Axon Central Canal lined with ependymal cells Nucleolus (owl’s eye nucleus) 40x

  14. Slide #2 Spinal Cord-dog (Bielschowsky) White Matter Gray Matter Neuron Cell Bodies Dark staining Neurofilaments 10x 4x

  15. Slide #3(NH): Spinal cord – dog (Golgi) Axon Fibrous Astrocyte Nodes of Ranvier 10x 40x

  16. Slide #21(NH): Spinal cord – rabbit (Del Rio Hortega) Nucleus 10x 40x

  17. Slide #22(NH): Brainstem – rabbit (Cajal) Note: capillaries and blood-brain barrier Extending Processes 40x

  18. Slide #30(NH): Cerebellum – dog (Bodian) White Matter Gray Matter *Reverse arrangement from spinal cord 4x

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