ANAT 2647 Lecture Topics By Week

ANAT 2647 Lecture Topics By Week - PNS 1st Lecture 1....

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PNS 1 st Lecture 1. Multipolar a. Seen most often, motor, interneuron’s 2. PseudoUnipolar a. DRG, primary sensory 3. Bipolar a. Join things 4. Myelinated a. Schwann cell-PNS b. Oligodendrocyte-CNS 5. Endoneurium a. Wraps around 1 fiber 6. Perineurium a. Several fibers – 1 fascicle 7. Epidneurium a. Around group of fascicles 8. Cranial, Spinal Nerve all in peripheral 9. Nuclei-cell bodies in CNS 10. Ganglia-cell bodies in PNS PNS 2 nd Lecture 1. Neuron a. Cell membrane a.i. Double layer, phospholipid membrane a.ii. Channels, proteins…. b. Nuclei b.i. Rounded (not always), oval, eccentric 2. Mitochondria a. Cytoskeleton-structure, form b. Vesicles-membrane bound 3. Transcription- RNA 4. Nissl Bodies (Rough ER) a. Synthesize proteins (ribosome’s make protein) 5. Golgi Bodies a. Storage b. Forms glycoprotein’s c. Forms lysosomes (enzymes) 6. Mitochondria a. Rod shaped b. Double membrane c. Inner membrane folded d. Energy production e. Main fxn-ATP production 7. Cytoskeleton a. Microtubules
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b. Microfilaments c. Microfilaments d. Microfibrils e. Forms frame of neuron f. Helps in transport 8. Process of neuron a. Axon-no nissle bodies b. Dendrite c. Neurophil-field of axons, dendrites and glial processes 9. Dendrites a. Have nissl bodies 10. Axon conduction a. Largers axons conduct action potentials faster than smaller axons b. Myelinated fibers conduct faster than unmyelinated 11. Gama Motor a. Muscle spinle alpha-lower motor neuron b. C-fibers-unmyelinated 12. Nerve Injury a. Cut end b. Crushed fiber c. Wallerian degeneration d. Regeneration 13. Growth Cone a. Looks for chemical cues to locate target 14. Chromatolysis a. Nissl bodies to sides 15. Anterograde a. Down axon 16. Retrograde a. Up axon 17. Telodendria a. Synaptic endings 18. Gap a. Is for transfusion 19. Synaptic Cleft a. Enzymes denature transmitter 20. Ventricular Zone a. Stem cell, pleury or multipotent 21. Intermediate Zone a. Neural blast, glial blast 22. Marginal Zone a. Mature neuron or glial cell 23. Neural Tube a. Becomes ventricular system
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PNS Lecture 1/20/10 1. Glial Cells – more than neuro 2. Microglia 3. Ependymal Cells a. line ventricles 4. Oligodendrocyte a. myelinate CNS b. myelin sheath c. analgous to Schwann cells and satellite cells of pns 5. Astrocytes (star cell) a. most numerous glial cells b. mechanical and metabolic support c. response to injury d. protoplasmic (grey matter) e. fibrous (white matter) 6. Ependymal Cells a. ciliated b. pseudostratified columnar c. move cns d. produce CSF e. stem cells 7. Microglia a. immune system of CNS b. phagocytic c. migrate to infection 8. Schwann Cell a. myelinate PNS b. facilitate regrowth of axons c. regulates neuron metabolism d. 1 schwann cell= 1 fiber e. support 9. Satellite Cell a. flattened Schwann cell b. analgous to astrocytes c. pseudounipolar neuron 10. Myelinated Defects a. multiple sclerosis (lose myelin) b. slow signal PNS Lecture 1/22/10 1. dermatome a. strip skin innervated by single spinal nerve 2. Sensory Receptor a. Cell that responds to stimulus 3. Receptive Field
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a. Territory from which a
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ANAT 2647 Lecture Topics By Week - PNS 1st Lecture 1....

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