Synapse | Synapse Transmission In Urdu Hindi | Class 12 Biology

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About This Video ........................

In This Video Lecture You Will Learn Basic Concept Of Synapse
Consecutive neurons are so arranged that the axon endings of one neuron are connected to the
A single neuron may form synapses with many incoming ibres of diferent neurons.
A nerve impulse is passed from one neuron to the other through the synapse, but a single impulse
The action potential cannot jump from one neuron to the next in line; rather the message is
does not necessarily get across the synapse. It may take two or three impulses arriving in rapid
succession or perhaps simultaneously from two or more ibres to start an impulse in the next
neuron.
dendrites of the next neuron. There is no cytoplasmic connection between the two neurons and
microscopic gaps are left between them. Each of these contact points is known as synapse.
transmitted across synapse in the form of chemical messenger called neurotransmitter.
When an impulse reaches a synaptic knob, synaptic vesicles within fuse with the presynaptic
membrane, causing the release of neurotransmitter molecules into the synaptic cleft. The
neurotransmitter molecules bind to the receptors, on the postsynaptic membrane, triggering an
action potential in the postsynaptic neuron, by causing changes in its permeability to certain ions.
Neurotransmitters are chemicals which are released at the axon ending of the neurons, at synapse.
Many diferent types of neurotransmitters are known. These are: acetylcholine, adrenaline, nor
epinephrine, serotonin and dopamine.
Acetylcholine is the main transmitter for synapses that lie outside the central nervous system.
Others are mostly involved in synaptic transmission within the brain and spinal cord.

About This Channel.....................

I make these videos cause I love to draw and connect the complexity of science and medicine into art. I'm not saying. I'm 100% correct in all my videos, but I do try to obtain the information from credible sources.
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_ students in class 11, 12 or appearing for competitive medical exams ( NMDCAT ) will find it very beneficial
_ The videos are categories under various heading to make the students life simplified

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[amnayat]

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[aroosakhan]

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Sir kindly share your Biology 2nd year notes with us .

Best regards 💤 jazakallah

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[shabbierahmad]

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[Chotimotimistakes]

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[hirach]

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[saithdastgir]

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