Communication Neurobiology - Membrane potential
6 important questions on Communication Neurobiology - Membrane potential
What are the three types of neural communication?
- Endocrine
- Neuronal
- Neuro-endocrine
What are the three steps for neural communication?
- Stimuli acting on dendrites of soma--> membrane potential
- Action potential is reached
- Release of the neural transmitter in the synapse= response
What are the 6 components of a neuron?
- Dendrites
- Soma
- Nucleus
- Axon
- Termial boutons
- Synapse
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What are the characteristics of a resting membrane potential?
- + and - ions unequally divided over cell membrane
- Continuous diffusion of K > Na via leak channels
- Results in: negative membrane potential
- Resting membrane potential is -70mV
- Na/K pomp needed to keep this in balance
What are the three types of Na/K ion channels?
- Non-gated channels= always open
- Voltage-gated channels= opens only when resting membrane potential changes
- Chemically-gated channels= opens when neurotransmitter binds
Explain the concept of the membrane potential?
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