0
The nerve is basically composed of many chemicals that maintain an electrical balance between the differing chemicals within and on outer edge of nerve membrane. A stimulus such as pressure, heat, cold, needle prick changes the electrical charge of the outer chemical, potassium I think, on the nerve membrane driving the potassium ions through the nerve membrane and into the actual interior of the nerve.
When the potassium with it's +/- charge goes into the nerve membrane then it expels sodium ( I think ) out to the outer wall where the potassium is. This reciprocal process of driving similar charged ions back and forth is the actual stimulus that goes to the brain and the brain knows there has been a change.
Electrically it's the same process you see when you put two "north" ends of a magnet together then they repel each other, when you put opposite polarities they attract. This is done but on a chemical, ionic scale and we have a nerve "firing" or the creation of a "message to the brain".
Now the speed of that chemical process is called absolute or relative refractory period. This process is controlled chemical reaction and the "speed" it is done is also dependent on the type of nerve it is.
Nerves are generally classified as a, b or c fibers and each has a differing conduction speed.
What else can I help you with?
What job do a nerve cell?
Nerve Cells: A. Use systems of cells in certain senses for example, eyes to receive messages. B. Receive touch messages C. Transmit those messages to other nerve cells D. Eventually, through passing the message from nerve cell to nerve cell the message is either transmitted to the brain for longer thought or to the spinal cord for a quick reflexive reaction. E. Do this all insanely fast.
How fast does your brain send a message to do-something?
0.000000001 seconds!!
How long does it take to receive a picture message on the PS3?
it depends on how fast both ps3's are
How fast nerve signals travel to the brain per sec?
Nerve speeds vary, BUT on average move 115-197 ft/sec (35-60 m/sec).
Why is it harder to learn something when you are older?
Because your brain doesn't make new connections between the nerve cells as fast as it did when you were young.
How can neurons carry messages to the brain?
The long bundle of neurons that carries messages to and from the body to the brain and is responsible for very fast, lifesaving reflexes is called the? Spinal cord.
Does sound travel under water in the deep ocean?
MAGIC!!!!! no really, sound travels underwater even fast than out of water. sound is just a vibration that your eardrums hear and send the message to your brain, and your brain converts it into a message that we know as sounds!
How fast does a nerve impulse travels?
It 200 miles per hour And it can probally be in meters too.
How fast does nerves send messages to the brain?
It varies from nerve to nerve (from 1 meter per second to 100 meters per second). The nerves to the voluntary muscles are myelinated, and thus are at the high speed end of speeds.
How fast does the image you see move to your brain?
The speed at which an image is processed and reaches the brain is almost instantaneous. Visual information enters the eye and travels along the optic nerve to the visual cortex at the back of the brain within milliseconds. This rapid processing allows us to perceive and interpret images quickly.
How is email different from ordinary mail?
email is different from ordinary mail because in e mail we can send message fast as well as not giving money but in the ordinary mail the message will not go fast a
What are the dangers of inhalers?
the fumes from toxic chemicals can kill you fast (heart stops, suffocation accidents) or slowly (brain damage). they can also cause permanent injuries such as nerve or kidney damage, permanent paralysis or shaking, brain damage and loss of bladder control (AKA YOUR URINATING PROCESSER)
