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What causes the synaptic delay?

Anonymous

∙ 15y ago

Updated: 6/1/2024

The cause of synaptic delay is attributed mainly to the time needed for the synaptic vesicles to release neurotransmitter into the synaptic cleft. While it can be considered a combination of binding to the presynaptic membrane (which is relatively a transient process) and subsequent exocytosis of the neurotransmitter, the main factor is release. Additionally, it does take a very short period of time for the neurotransmitter to diffuse across the synaptic cleft and bind to to its receptors on the post-synaptic membrane.

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The synaptic delay is caused by the process of neurotransmitter release, diffusion across the synaptic cleft, binding to receptors on the post-synaptic neuron, and the propagation of the electrical signal through the post-synaptic cell. This series of events takes time to occur, leading to the delay in signal transmission across the synapse.

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∙ 9mo ago

what cause synaptic delay

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∙ 14y ago

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Which reflex shows the least synaptic delay?

The monosynaptic reflex, such as the knee-jerk reflex, has the least synaptic delay because it involves only one synapse between sensory and motor neurons in the spinal cord. This direct connection allows for a rapid response to a stimulus.

What causes calcium channels in the synaptic knob to open?

depolarization of the presynaptic membrane due to an arriving action potential

What causes the vesicles inside a neuron to fuse with the plasma membrane?

When an action potential reaches the axon terminal, it triggers the opening of voltage-gated calcium channels. The influx of calcium causes the synaptic vesicles to move towards the cell membrane and fuse with it, releasing neurotransmitters into the synaptic cleft.

The narrow space between the synaptic terminal and the muscle fiber is the?

synaptic cleft, where neurotransmitters are released by the synaptic terminal and bind to receptors on the muscle fiber to trigger a muscle contraction.

What are The chemicals that bridge the synaptic gap?

Chemicals that bridge the synaptic gap are called neurotransmitters.

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Related Questions

What is synaptic delay?

Synaptic delay is the period of time for neurotransmitter chemicals released from the axon terminus of the sending neuron to cross the synaptic gap by diffusion and attach to matching receptors on the receiving neuron, initiating a reaction (either stimulatory or inhibitory) in that neuron.

Which reflex shows the least synaptic delay?

The monosynaptic reflex, such as the knee-jerk reflex, has the least synaptic delay because it involves only one synapse between sensory and motor neurons in the spinal cord. This direct connection allows for a rapid response to a stimulus.

What causes calcium ions to enter the synaptic bulb?

Calcium ions enter the synaptic bulb in response to an action potential arriving at the presynaptic terminal. Voltage-gated calcium channels open in the presynaptic membrane, allowing calcium to flow into the cell. The increase in calcium concentration triggers the release of neurotransmitters into the synaptic cleft.

Is there any synaptic delay in communication from pre-synaptic neuron to post-synaptic neuron?

Yes, when speaking of a chemical synapse; but no, not so much, when speaking of an electrotonic (gap junction) synapse.There are two types of synapses in the nervous system: chemical synapses, and electrical synapses (also know as electrotonic synapses or gap junctions).Chemical synapses have a small gap between two neurons, called the synaptic cleft, about 30nm across. At this gap, the two neurons do not touch (except for small molecules projecting from each and sticking to one another so as to keep the neurons in place to maintain the synapse; they are called synaptic adhesion molecules); the two neurons do not exchange their interior cellular fluid, the cytosol, nor any ions or other solutes. On receipt of a neural impulse, the pre-synaptic neuron releases Neurotransmitter chemicals into the synaptic cleft, which then diffuse across the synaptic cleft to the post-synaptic neuron, where they fit into receptors there and cause ligand-gated ion pores to open in the post-synaptic neuron, allowing sodium ions into it, which is the beginning of the neural signal in that neuron. The release of the neurotransmitter, its diffusion across the gap, the opening of the ligand-gated ion pores, and the entry of sodium ions takes a comparative long time, with the result that the synaptic delay for a chemical synapse is approximately 2 ms.Electrical synapses have a much smaller gap between neurons, about 3.5nm, with pore structures spanning the gap, which allows ions in the pre-synaptic neuron to pass directly into the post-synaptic neuron. Since there is no need for the pre-synaptic neuron to release neurotransmitters, nor for them to diffuse across a comparatively large gap, nor to cause ligand-gated pores to open, the synaptic delay for an electrical synapse is shorter, approximately 0.2ms.However, the difference in synaptic delay between chemical and electrical synapses may be less for mammals than for cold-blooded animals.

What can causes delay in second pragnancy?

6400000

What causes delay in period?

Many things can cause a delay in a woman's period. Stress, poor diet, and a lack of sleep can cause a delay. A serious illness can also cause a delay.

What are the causes of delay in menstruation?

this could be pregnancy or stress.

What most directly causes synaptic vesicles to release acetylcholine into the synaptic cleft?

The entry of calcium ions into the presynaptic terminal triggers the fusion of synaptic vesicles containing acetylcholine with the cell membrane, leading to the release of acetylcholine into the synaptic cleft. This process is known as calcium-dependent exocytosis and is a key mechanism for neurotransmitter release at synapses.

What are the causes of delay jitter?

Delay jitter is caused by queuing, contention and sterilization effects on the path through the network.

Why is response time in a monosynaptic reflex much faster than response time in a polysynaptic reflex?

Transmission across a chemical synapse always involves a synaptic delay, but with only one synapse (a monosynaptic reflex), the delay between stimulus and response is minimized. In a polysynaptic reflex, the length of delay is proportional to the number of synapses involved.

What are some problems globalization causes?

sensitivity to crisis in other countries that causes a delay in imports (A+)

What causes calcium channels in the synaptic knob to open?

depolarization of the presynaptic membrane due to an arriving action potential

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