Mapa mental
Nerve Impulses
Mind map: Nerve impulses
Conteúdo do mapa
Nerve Impulses
Anatomy of a neurone
- Dendrons
- Dendrites
- Axon
- Phospholipid bilayer
- Sodium-Potassium pump
- Sodium ion channel
- Potassium ion channel
- Schwann cells
- Myelin sheath
- Nodes of ranvier
- Synapse
- Presynaptic neurone
- Smooth ER
- Mitochondrion
- Synaptic vesicle
- Acetylcholine
- Ca2+ channel
- Acetylcholine transferase
- Choline
- Ethanoic acid
- Synaptic cleft
- 20-30 nm wide
- acetylcholinesterase
- acetylcholine
- Cholinergic synapse
- Postsynaptic neurone
- Na+ channel
- Activated by acetylcholine
- Inhibition
- Cl- chanels
- Makes postsynaptic membrane more -ve
- Cl- chanels
- Na+ channel
- Presynaptic neurone
- Dendrons
Propogation of a nerve impulse
- Resting potential, membrane polarised
- Influx of Na+, depolarisation occurs
- charge change causes opening of Na+ voltage-gated chanels
- Depolarisation continues, K+ channels open and neurone behind repolarises
- Na+ removed by active transport, neurone back at resting potential
- Depolarisation continues, K+ channels open and neurone behind repolarises
- charge change causes opening of Na+ voltage-gated chanels
- Influx of Na+, depolarisation occurs
- Summation
- Spatial Summation
- several presynaptic neurones
- Temporal summation
- single presynaptic neurone firing frequently
- Spatial Summation
- Resting potential, membrane polarised
Informações
- Descrição
- Undergraduate degree Biology Mapa Mental sobre Nerve Impulses, criado por Brendan Williams em 25-02-2014.
- Criado por
- Brendan Williams
- Visualizações
- 196
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- Avaliação
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