|
Title: Transmission of info across synaptic cleft? Post by: rgonzalez7 on Apr 26, 2013 All chemical synapses exhibit the same general sequence of events during the transmission of information across the synaptic cleft. This sequence is always initiated by an action potential that travels down the presynaptic cell (the sending neuron) to its synaptic terminal(s).
Drag the labels onto the flowchart to indicate the sequence of events that occurs in the presynaptic cell (orange background) and the postsynaptic cell (blue background) after an action potential reaches a chemical synapse. Does anyone know the order of the transmission information across the synaptic cleft? I have tried this 3 times and only get one more chance! Thank You! Title: Re: Transmission of info across synaptic cleft? Post by: royalblue08 on Apr 27, 2013 I think you're missing the diagram.
Generally, in chemical synapses, an influx of Ca2+ is required to cause the synaptic vesicles to fuse with the membrane of the presynaptic neuron. If these Ca2+ channels are blocked, no neurotransmitters are released into the synapse. Therefore, the signal cannot be transmitted across the synapse. |