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How is a nerve signal transmitted from the point of sense to the brain and back?
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What happens when an image forms on the retina?
Each light-sensitive receptor cell generates a signal in its attached optic nerve fibre, for transmission to the brain where the combined signals are processed to build up the image itself in our minds.
What is the motor point of a nerve?
The nerve motor points is a large muscle mass of shoulders, arms, and legs, striking with leg or hand. Some types of nerve points are superficial peroneal nerve motor point, tibial nerve motor point, common peroneal nerve motor point, and femoral nerve motor point.
What is the amount of stimulation required to intiate a nerve impulse called?
Neuron has to be stimulated to the point of it's threshold in order for an action potential to be initiated and transmitted
What is The point at which the nerves from the left side of the body cross over into the right side of the brain and vice versa?
There is only one place in the brain where nerves actually cross each other. I believe it is the Optic nerve and the Trochlear nerve. I'll add a picture under the weblink
Which part of the brain is visible to the outside world and is part of the eye?
The point at which the optic nerve enters the eye and forms part of the retina, it can viewed via the pupil with specialist equipment.
How nerve signals are transmitted at a synapse?
An electrical charge is spread through your body... The brain sends an electrical current to the point of the nerve to tell the body of the event...
How does the light travel to your brain?
two lovley cells types in your retina, receive the light focused through the lense in your eye, and convert the light into two signals. Color, and shape, or something like that. they then traver down the optical nerve to opposite sides of your vision center. as in, the left eye's nerve goes the the right side of the vision center in your brain. you brain then unscrambles the signal into better-than- HD images for your veiwing pleasure. Exuse my strange explanation.
How does the nerve signal move through the neuron?
in transmitting a nerve signal such as from your hand to your brain, several neurons are involved. Nerve cells can receive and transmit signals.the dendrites of one neuron are close to the axon of another neuron. The point where neurons meet is called a synapse
What happens when an image forms on the retina?
Each light-sensitive receptor cell generates a signal in its attached optic nerve fibre, for transmission to the brain where the combined signals are processed to build up the image itself in our minds.
What is the motor point of a nerve?
The nerve motor points is a large muscle mass of shoulders, arms, and legs, striking with leg or hand. Some types of nerve points are superficial peroneal nerve motor point, tibial nerve motor point, common peroneal nerve motor point, and femoral nerve motor point.
What is the amount of stimulation required to intiate a nerve impulse called?
Neuron has to be stimulated to the point of it's threshold in order for an action potential to be initiated and transmitted
What is the function of the blind spots?
It is not a function, it is where the optic nerve connect from the eye to the brain. Because of this there are no photo-receptors at that point.
Why can't you see an image hitting the blind spot?
The blind spot is the point on the retina where there are no receivers i.e. no cones or rods, and the reason there are no cones or rods is because this spot is where the opic nerve teminates in the retina. No receivers, no signal to the brain.
What is The point at which the nerves from the left side of the body cross over into the right side of the brain and vice versa?
There is only one place in the brain where nerves actually cross each other. I believe it is the Optic nerve and the Trochlear nerve. I'll add a picture under the weblink
A signal starts at point x as it travels to point y it loses 8 db at point y the signal is boosted by 10bb as the signal travels to point z it loses 7 db what is the db strength of the signal at point?
A signal starts at point X. As it travels to point Y, it loses 10db. At point Y, the signal is boosted by 5db. As the signal travels to point Z, it loses 7db. What is the db strength of the signal at point Z?
At what point is an individual considered brain dead?
When too many cells die occurring from death due to a lack of oxygen.
Why is the myelin sheath so important to the nervous system?
Myelin is a fatty substance that insulates and protects nerve cells and allows them to transmit electrical signals quickly.
