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What is the difference between the axon and axonal terminal and synaptic knob?
The axon is a long, slender projection that carries electrical impulses away from the cell body. The axonal terminal, or synaptic knob, is the end of the axon that forms a synapse with another neuron or target cell. The synaptic knob contains neurotransmitter vesicles that are released into the synapse to communicate with the next cell.
How does a neuron decide whether or not to produce action potentials?
A neuron decides whether or not to produce an action potential by a summation of excitatory and inhibitory signals at the trigger point of the neuron, the axon hillock (or, the initial segment of the axon immediately following the axon hillock), plus a sufficient density of voltage-gated sodium ion pores at the trigger point.Neurons can receive both excitatory and inhibitory inputs at the same time, and if a confluence of those multiple signals at the axon hillock/initial axon segment (or alternatively, an occasion of sufficiently quickly repeated excitatory signals) sums to yield a membrane potential there of about -55 mv, this will cause the large number of voltage-gated sodium ion pores present there to open, allowing a sufficient influx of sodium ions to raise the membrane potential momentarily higher, which depolarizes adjacent regions of the axon, allowing more voltage-gated ion pores to open, allowing more sodium ions in; these actions repeat and continue along the axon, achieving the action potential.It's important to understand that although the level of the summation of signal voltages is the trigger for the action potential, the initial firing of the action potential could not occur if there wasn't a sufficient density of voltage-gated sodium ion pores at the trigger point to allow sufficient sodium ions in to cause the membrane potential in adjacent regions to be high enough to open theirv-gated Na ion pores, so that the action potential could continue to propagate along the axon.
What happens when presynaptic cell's produce action potentials?
The action potential moves along the axon and releases neurotransmitters into the synapse.When the presynaptic cell (neuron) fires the action potential, it causes voltage gated sodium ion pores to open at the initial segment of its axon (just after the axon hillock), which allows sodium ions in, which cause adjacent voltage gated sodium ion pores to open, which let in more sodium ions, which do the same thing progressively along the axon, until the action potential reaches the axon terminals, at which point the voltage opens voltage gated calcium ion pores, which cause vesicles (small membrane bounded sacs) full of neurotransmitters to move toward the end of the cell membrane and fuse there, releasing their contents into the synaptic cleft.
Is fiber same as axon?
No, fiber refers to any thread-like structure in the body, while axon specifically refers to the long extension of a nerve cell that conducts electrical impulses. Axons are a type of fiber found in the nervous system.
What rating on a led bulb do you need to provide the same amount of lights a 60 watt bulb?
100
Is a knoll the same as a mountain?
No, a knoll is a small mound or hillock.
Is 60 Hz and 60 watt light bulb the same thing?
No, they are not the same thing. 60 Hz refers to the frequency of the electricity supply, while a 60-watt light bulb refers to the power consumption or output of the bulb.
Is a Bulb the same thing as a cell?
A bulb is a giant embryo. It is still living, but it is multicellular. A giant cell would be a yolk thingy, or a developing chicken in its egg. A bulb is not a cell.
What is the difference between the axon and axonal terminal and synaptic knob?
The axon is a long, slender projection that carries electrical impulses away from the cell body. The axonal terminal, or synaptic knob, is the end of the axon that forms a synapse with another neuron or target cell. The synaptic knob contains neurotransmitter vesicles that are released into the synapse to communicate with the next cell.
What type and size bulb for third brake light?
You did not list any information about the vehicle. Therefore all I can tell you is remove the old bulb and buy exactly the same thing.
Does a fluorescent bulb emit the same amount of heat as a metal halide bulb of the same wattage?
No, a fluorescent bulb does not emit the same amount of heat as a metal halide bulb of the same wattage.
Are scallions and chives the same thing?
No, scallions and chives are not the same thing. Scallions have a mild onion flavor and a white bulb at the base, while chives have a milder flavor and thin, hollow green stems.
How does a neuron decide whether or not to produce action potentials?
A neuron decides whether or not to produce an action potential by a summation of excitatory and inhibitory signals at the trigger point of the neuron, the axon hillock (or, the initial segment of the axon immediately following the axon hillock), plus a sufficient density of voltage-gated sodium ion pores at the trigger point.Neurons can receive both excitatory and inhibitory inputs at the same time, and if a confluence of those multiple signals at the axon hillock/initial axon segment (or alternatively, an occasion of sufficiently quickly repeated excitatory signals) sums to yield a membrane potential there of about -55 mv, this will cause the large number of voltage-gated sodium ion pores present there to open, allowing a sufficient influx of sodium ions to raise the membrane potential momentarily higher, which depolarizes adjacent regions of the axon, allowing more voltage-gated ion pores to open, allowing more sodium ions in; these actions repeat and continue along the axon, achieving the action potential.It's important to understand that although the level of the summation of signal voltages is the trigger for the action potential, the initial firing of the action potential could not occur if there wasn't a sufficient density of voltage-gated sodium ion pores at the trigger point to allow sufficient sodium ions in to cause the membrane potential in adjacent regions to be high enough to open theirv-gated Na ion pores, so that the action potential could continue to propagate along the axon.
Is a phonograph and a light bulb the same thing?
phonograph is a musical instrument. Phono means sound. Do you mean Photograph? That is a picture
Is the Axon terminal the same as the terminal buttons?
Yes, Axon terminals and terminal buttons are different terms for the same structure at the end of the neuron that releases neurotransmitters to communicate with other neurons or target cells.
What does the exclamtion point symbol mean on my 2008 town and country?
You have a light bulb out. (It is actually supposed to be a light bulb, not an Exlamation Point. I wondered the same thing for a long time.) Good luck!
1998 Chevy Tahoe that the left blinker will not work when the headlights are on you have changed the bulb check fuses and changed the relayI am not sure what is next?
it is your bulb board. The thing your bulbs go into. Had the same problem. 10.00 bucks
