Lecture title - Synapses
3 important questions on Lecture title - Synapses
What is the name of the junction in an electrical synapse that allows substances to move directly between the presynaptic and postsynaptic neurons? What substances move through this junction? What structure does it create, and how does it affect the speed and direction of signal transmission?
Two neurons are connected by gap junctions allowing charge carrying ions to flow directly between the presynaptic neuron and postsynaptic neuron in either direction via the pore that is created. This leads to unbroken transmission of electrical signals and are extremely rapid
State the 4 reasons why electrical synapses are important?
Arousal from sleep
Mental attention
Emotions and memory
Ion and water homeostasis
Mental attention
Emotions and memory
Ion and water homeostasis
What is a chemical synapse?
A junction between an axon terminal of one neuron and the dendrites or cell body of a second neuron passing a chemical messenger that transmits information one way across a space separating the two neurons
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