HMB200H1 Lecture Notes - Lecture 2: Saltatory Conduction, Exocytosis, Cannabinoid
Document Summary
Intercommunication of these many cells drives human behaviour (cid:8219)(cid:1)part 1: neurons are excitable cells. A typical neuron has dendrites that allow neuron to receive wide input range. Information from other neurons is collected at dendrites. Cell body is also where dna is stored. Signal is sent via axon to terminal, where it"s passed onto target. Axonal terminals signal output via neurotransmitter release. Neurons are able to communicate w/ each other via connections called synapses. Synapse made between axon terminal of presynaptic neuron & dendritic terminal (just one example) of postsynaptic neuron. Neurons are excitable cells which can conduct electrical signals along their membrane. Conduction of signals along axon permits release of chemical neurotransmitter from axon terminal, allowing neuron to communicate w/ its target. To understand how neurons generate signals & release transmitters, we must rst understand resting membrane potential (rmp) in neurons. This bilayer is selectively permeable certain substances cannot enter or escape easily.
