Term
| %body weight of blood plasma, insterstitial fluid and intracellular fluid |
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Definition
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Term
| As lipid solubility increases, it becomes...permeable to the membrane |
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Definition
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Definition
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Definition
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Definition
| Occurs inside cell, invaginated membrane pinches off pockets |
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Term
| Potassium ions leave the neurone through the sodium pump and... |
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Definition
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Term
| there are very few... leak channels |
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Definition
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Term
| Sodium ions are in high conc... and potassium ions are in high conc... |
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Definition
| outside the cell, inside the cell |
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Term
| Non-propagated potentials |
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Definition
| local, do not leave the nerve cell |
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Term
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Definition
| Generating an action potential |
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Term
| At peak of action potential |
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Definition
| Na+ gates close and slower K+ channels open |
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Term
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Definition
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Term
| How impulses move from synapse to synapse |
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Definition
| Action potention depolarises terminal, voltage gated Ca2+ channels open, Ca2+ enters, vesicles filled with neurotransmitter fuse with membrane, Neurotransmitter released, binds to postsynaptic receptor, activating it.Neurotransmitter later degraded and recycled |
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Term
| How an impulse starts in a postsynaptic receptor |
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Definition
| The receptors activate thanks to the neurotransmitters, causing sodium ion channels to open |
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Term
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Definition
| Gamma aminobutyric Acid, inhibitory neurotransmitter |
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Term
| Synapses... have the greatest affect on action potential and firing |
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Definition
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Term
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Definition
| 2 Excitatory potentials on adjacent membranes firing together add together |
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Term
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Definition
| 2 Excitatory potentials close in time firing together add together |
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Term
| Group 1 neurotransmitters |
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Definition
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Term
| Group 2 neurotransmitters |
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Definition
| Acetylcholine, Noradrenaline |
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Term
| Group 3 neurotransmitters |
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Definition
| TRH, Substance P (iluminoncids) |
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