객관식
Which of the following is an effect of the release of the hormone catecholamine in a person?
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10. Cell Signaling
Introduction to Cell Signaling
객관식
If you had to summarize the events of synaptic transmission in three words, which would they be, in order?
A
Reception, Transduction, Response
B
Binding, Release, Diffusion
C
Diffusion, Binding, Release
D
Release, Diffusion, Binding
검증된 단계별 안내1
Understand the process of synaptic transmission: Synaptic transmission is the process by which neurons communicate with each other or with target cells (e.g., muscle cells) through the release of neurotransmitters at the synapse.
Step 1: Release - Neurotransmitters are released from the presynaptic neuron into the synaptic cleft. This occurs when an action potential reaches the axon terminal, causing calcium ions (Ca²⁺) to enter the cell and trigger the release of neurotransmitter-filled vesicles.
Step 2: Diffusion - Once released, the neurotransmitters diffuse across the synaptic cleft, which is the small gap between the presynaptic and postsynaptic neurons.
Step 3: Binding - The neurotransmitters bind to specific receptors on the postsynaptic membrane, initiating a response in the postsynaptic cell, such as the opening of ion channels or activation of intracellular signaling pathways.
Review the sequence: The correct order of events in synaptic transmission is Release, Diffusion, and Binding, as these steps describe the flow of neurotransmitter activity from the presynaptic neuron to the postsynaptic target.
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