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Neurotransmission
Educational only: videos on MedicalVideos.com are for general information and are not medical advice. Always consult your own doctor about your health.
Ca2+ binds with the membrane of the synaptic vesicles, which causes the vesicles to break and release the neurotransmitter into the synaptic cleft. After the neurotransmitters are released, they diffuse across the synaptic cleft and interact with receptors on the postsynaptic membrane. When the action potential reaches the presynaptic terminal, it provokes the release of a small quantity of neurotransmitter molecules, which bind to chemical receptor molecules located in the membrane of another neuron, the postsynaptic neuron, on the opposite side of the synaptic cleft.
This video in 30 seconds
This video explains neurotransmission across a synapse. It covers how an action potential reaching the presynaptic terminal provokes release of neurotransmitter molecules, how calcium binds with the membrane of synaptic vesicles causing them to release neurotransmitter into the synaptic cleft, and how the neurotransmitter diffuses across the cleft and interacts with receptors on the postsynaptic membrane.
Key points
- An action potential at the presynaptic terminal triggers neurotransmitter release
- Calcium binds with synaptic vesicle membranes, causing vesicles to release neurotransmitter
- Neurotransmitter is released into the synaptic cleft
- It diffuses across the cleft and binds receptors on the postsynaptic membrane
Video Overview
This video presents “Neurotransmission” — Ca2+ binds with the membrane of the synaptic vesicles, which causes the vesicles to break and release the neurotransmitter into the synaptic cleft. After the neurotransmitters are released, they diffuse across the synaptic cleft and. Whether you are preparing for a procedure, studying the technique, or learning how a condition is assessed, the recording shows the process as it is performed in practice.
From our Neurology collection: Stroke, epilepsy, Parkinson's, dementia and nerve disorders — examinations and treatments explained by neurologists. Browse all Neurology videos →
Educational content only — not a substitute for professional medical advice.
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Founded by Dr. Mohamed Ibrahim, MD, PhD — physician-scientist.
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