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When the nerve impulse encounters a myelin-covered section of neuron?
When the nerve impulse encounters a myelin-covered section of a neuron, it jumps between the nodes of Ranvier, allowing for faster transmission speed due to saltatory conduction. Myelin acts as an insulator, preventing the impulse from dissipating and increasing the efficiency of signal transmission along the neuron.
Why the transmission of nerve impulse is faster in medullated nerve fiber than in non-medullated nerve fiber?
generally the impulse is nothing but the stimulus carried to a part of body to carry out specific action in response to that stimulus.it is transmitted from one neuron to another or one neuron to another organ.this is carried all along the neuron and at the end that is at the synapse it gets diffused in neurotransmitter and again transmitted to another organ or neuron.this is carried very faster.this is started polarization of neuron and once polarized and being transmitted it cant be again polarizedthis occurs even more fastly in .mylenated neurons than in nonmylenated.bec in mylenated neurons the axon is partly covered by myleinshreath.this myleinshreath has a special property that it doesn't allow ions to pass through it.since polarization is occurred due to movement of ions in and out of axons,and the mylein shreath doesn't allow this the leaping of ions occurs.and as a result impulse been transmitted as a loop of current by taking leap at mylein shreath.while in nonmylenated ones no such leaping occurs and it is transmitted slowly all along the length of axon.so impulse transmission occurs very fast in mylenated ones.
When the action potential reaches the terminal end of the pre-synaptic neuron how does it continue?
the impulse is transmitted by either neurons or sensory or effector organs.impulse is nothing but the stimulation for an part of body to carry out specific actions.generally impulses are transmitted very faster by neurons that too mylenated neurons.when an impulse is transmitted across a neuron or organ it gets polarised.due to unknown mechanism the axon terminals present at the end of axon release special type of transmitters called neurotransmitters into the gap present in between 2 neurons or a neuron and organ.these examples of neurotransmitters are GABA,acetylcholase,epinephrine ,nor epinephrine etc.these help in transmitting impulses from one to another.these get diffused into gap from axon terminals and helps in transmission.after the impulse is transmitted these again gets inactivated or taken back into axon terminals.these are inactivated by special enzymes.hence these are very important in nervous system for impulse transmission .
Why causes the neurons fire?
Neurons are nerve cells, and they fire to relay messages from neuron to neuron. Neurons fire when a charge jumps across a synapse to the dendrite of a cell. The neuron then fires the charge down it's axon, and the charge travels to the next neuron.
What are two types of conduction in a neuron?
Two types of conduction in a neuron are saltatory conduction, where the action potential "jumps" from one Node of Ranvier to another, and continuous conduction, where the action potential travels along the entire length of the axon without "jumping." Saltatory conduction is faster and more energy-efficient due to the insulation provided by the myelin sheath.
When the nerve impulse encounters a myelin-covered section of neuron?
When the nerve impulse encounters a myelin-covered section of a neuron, it jumps between the nodes of Ranvier, allowing for faster transmission speed due to saltatory conduction. Myelin acts as an insulator, preventing the impulse from dissipating and increasing the efficiency of signal transmission along the neuron.
What happens at a synapses?
At a synapse, one neuron sends signals to another neuron through the release of chemicals called neurotransmitters. These neurotransmitters travel across the synapse and bind to receptors on the receiving neuron, which can either excite or inhibit the next neuron's activity. This communication between neurons plays a crucial role in transmitting information throughout the nervous system.
True or false when an impulse reaches a synapse an electrical spark jumps the gap?
TRUE
Why the transmission of nerve impulse is faster in medullated nerve fiber than in non-medullated nerve fiber?
generally the impulse is nothing but the stimulus carried to a part of body to carry out specific action in response to that stimulus.it is transmitted from one neuron to another or one neuron to another organ.this is carried all along the neuron and at the end that is at the synapse it gets diffused in neurotransmitter and again transmitted to another organ or neuron.this is carried very faster.this is started polarization of neuron and once polarized and being transmitted it cant be again polarizedthis occurs even more fastly in .mylenated neurons than in nonmylenated.bec in mylenated neurons the axon is partly covered by myleinshreath.this myleinshreath has a special property that it doesn't allow ions to pass through it.since polarization is occurred due to movement of ions in and out of axons,and the mylein shreath doesn't allow this the leaping of ions occurs.and as a result impulse been transmitted as a loop of current by taking leap at mylein shreath.while in nonmylenated ones no such leaping occurs and it is transmitted slowly all along the length of axon.so impulse transmission occurs very fast in mylenated ones.
When the action potential reaches the terminal end of the pre-synaptic neuron how does it continue?
the impulse is transmitted by either neurons or sensory or effector organs.impulse is nothing but the stimulation for an part of body to carry out specific actions.generally impulses are transmitted very faster by neurons that too mylenated neurons.when an impulse is transmitted across a neuron or organ it gets polarised.due to unknown mechanism the axon terminals present at the end of axon release special type of transmitters called neurotransmitters into the gap present in between 2 neurons or a neuron and organ.these examples of neurotransmitters are GABA,acetylcholase,epinephrine ,nor epinephrine etc.these help in transmitting impulses from one to another.these get diffused into gap from axon terminals and helps in transmission.after the impulse is transmitted these again gets inactivated or taken back into axon terminals.these are inactivated by special enzymes.hence these are very important in nervous system for impulse transmission .
Why causes the neurons fire?
Neurons are nerve cells, and they fire to relay messages from neuron to neuron. Neurons fire when a charge jumps across a synapse to the dendrite of a cell. The neuron then fires the charge down it's axon, and the charge travels to the next neuron.
How does Goku get of namik?
just seconds befor namik blows up he jumps in a space ship but it was to damaged then he spots another one & gets in that & only just makes it off namik.
What is it called when a disease jumps from one species to another?
zoonosis
What are two types of conduction in a neuron?
Two types of conduction in a neuron are saltatory conduction, where the action potential "jumps" from one Node of Ranvier to another, and continuous conduction, where the action potential travels along the entire length of the axon without "jumping." Saltatory conduction is faster and more energy-efficient due to the insulation provided by the myelin sheath.
An astronaut wanders space for hours how does he get around the moon?
He walks or floats or jumps ya now what i mean
What jumps but never falls?
anything that can jump but ON A PLANET WITHOUT GRAVITY!!!!!! Also in space where up could be down and down could be up. If a person jumps into a volcano the person will vaporize and the air particles will float upwards and possibly float into outer space where there is no up and there is no down.
Does a hyperlink add size to a worksheet?
Everything adds size to a worksheet. However, if what you mean is is what the hyperlink jumps to included in the file if it is part of another file, then no that is not added in. It is just the text of the link itself that is taking up space.
