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How and what do nerves communicate?
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- 1Give the three types of synapse. Why of these is most potent at eliciting a response?Axodendritic, Axosomatic, Axoaxonic. The most potent is axoaxonic synapses as they directly influence the synapse of the axon.
- 2What is a ligand?A super specific molecule which elicits a specific physiological response.
- 3Describe the two types of gating mechanisms and give the main points about each of them.Ionotropic, looks out from the cell and is directly effected by a ligand meaning its fast to react but has a smaller response. Metatropic, uses a second message system to transmit the message from a ligand to inwards facing channel receptors. This means the response is slower but is amplified by the cascade effect.
- 4Give the four groups of transmitter.Amino acids, Neuropeptides, Monoamides and Other
- 5what are mini end plate potentials?The spontaneous release of neurotransmitter vesicles without the simulation from the nerve.
- 6What is the role of a synapse?Amplify signals and allow information processing (gives us access to many nerves)
- 7What is the problem with electrical synapses? Why is this nor a problem in chemical synapses? Do humans use these synapses and if so where?They allow the charge to leak from the synapse. Animals might use tight junctions as a method of preventing this electrical leak but humans don't use electrical synapses. Chemical synapses still allow leak but due to their all or nothing principles they are unaffected.
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- Sensation and Movment Flashcards on How and what do nerves communicate?, created by alexlpeart on 06/05/2013.
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