PHYS 215 Lecture Notes - Lecture 5: Tetanus, Acetylcholine, Clostridium Botulinum
12 Sep 2016
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Graded potentials add up: axon hillock. Myelinating cells: myelin lipid covering, schwann cells (neurolemma cells) Can promote growth of neuron: oligodendrocytes. Don"t want to promote growth like schwann. Cell body is external to the axon. How can we promote growth? (potential but no guarantee: block inhibitors, nerve grafts with schwann cells, neuronal stem cells. Multiple sclerosis: affects brain and spinal cord (central nervous system) Oligodendrocytes (regeneration is limited: cause of ms is unknown. Repeated episodes of inflammation of nervous tissue. Episodes occur when the body"s own immune cells attack the nervous system (autoimmune disorder) Can be promoted by decrease in your own immune function (low vitamin d) autoimmune disorder: guillain-barre (schwann cells are attacked) 90% chance recovery in first year because schwann cells are regenerative) Gland (neuroglandular junction or synapse: innervation. Receptors for neurotransmitter: synaptic know or bouton. The swelling at the axon terminal: synaptic cell. What is involved in neurotransmitter release: interaction of. Docking proteins: remember? t-snares and v-snares.
