CBP Animal 3 Synapse SOUL

CBP Animal 3 Synapse SOUL - CBP Animal 3 Synapse SOUL

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LR/CC/CBP Synapses In a large organism there are many nerve cells that need to exchange signals with each other Exchange occurs through synapses Electrical synapses are gap junctions allowing local current to pass directly from one cell to another Few electrical synapses in nervous system but important in smooth and cardiac muscle
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LR/CC/CBP
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LR/CC/CBP Most synapses in the nervous system are chemical SYNAPSES
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LR/CC/CBP Neurotransmitters Acetylcholine (±) Monoamines (±) L Noradrenaline, 5-HT, dopamine, histamine (-) Amino acids L GABA & glycine, (-) +) Nitric Oxide ( +) Neuropeptides L (-) L Substance P ( +)
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LR/CC/CBP Chemical Signals, NeuroTransmitters Original principle, one neuron one NT Now known to be possible to have several neurotransmitters used in a single neuron L But all synapses of a single neuron will secrete the same mix of NT The same NT can have both excitatory or inhibitory effect dependent on which receptors are present in the post synaptic membrane
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This note was uploaded on 07/04/2011 for the course BIO microbiolo taught by Professor Point during the Spring '09 term at HKU.

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CBP Animal 3 Synapse SOUL - CBP Animal 3 Synapse SOUL

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