Imagine that a neuron is cut so that axon terminal is cut off.
129723
Transmission of the signal requires a complete cellular membrane, because the signal is a waveform traveling along that membrane.  Cutting the axon (which is done in studying axonal regrowth and regeneration) disrupts the membrane integrity, thus no signal can pass this point.  In some neurons, the axon can travel as much as 3 feet, and damage done at the proximal end of the axon can take months to regrwo.  However, if you are talking about loss of the presynaptic terminal only (as occurs in some diseases), then reconnection could occur within hours or days.
616839
In fact, the optic nerves would still likely function, and the blood on theeyeball woudl *not* block vision-only perhaps make it pinkish.  THe strain on the optic nerve might cause severe pain and/or light flashes.\nAssuming that the eyes worked perfectly (which anyway is fairly likely), they would see an process whatever they were looking at-so yes, your eyes would see each other, andyour brain would process that as it would normall-If you have ever looked through a small hole with just one eye-say, a microscope, then your eyes were getting completely different views...you can think of many times when your eyes were focused on totally different things, and yet your brain didn't get scrambled or confused...it went with the view that *you* were interested in- The brain will make dominant the view from the eye that you are focused on-so, if you are looking through a microscope, you see (with the micro eye) a slide of a leaf-but with the other eye you see the side of the microscope and the table- YOur brain brings the leaf side to the top, and enhances it over the other, because it is what you are interested in.  If you took your eyes out and faced them to each other, you would get two views of eyeballs-your brain wouldnt scramble or freak, it would just switch dominant views based on you attention at that second.\n\nAnd I absolutely guarantee the optic nerve would NOT seperate from the eye itself- I've had to dissect these before and they are attached extremely well- I have also had the misfortune of being with a guy who had the orbit of his eye broken, and his eyeball bulged out-he could see with it fine, though it hurt horribly, and once the eye was put back in , there was no permanent damage
675110
yes, it's called communication.  Images can be conveyed through art or illustration.  Thoughts can be conveyed verbally.  Emotions through body language.  If a neurosurgeon tried cutting and pasting, he would have a big gooey mess on his hands, not to mention some very angry bereaved families.  Besides, neural networks only make sense in the context of the remainder of the brain's network system at large, so it would be like trying to do physical splicing with a floppy disk.  It wouldn't work.
346237
The prognosis for life is good. There may be residual paralysis or loss of sensation, though.
545779
Part of the problem is that we can't fix a severed spinal cord -- and we'd have to sever the spinal cord to transplant just the brain.\n\nSuppose, then, that we transplanted the whole central nervous system?  We'd still have the problem of attaching nerves, and unfortunately they don't regenerate to the extent needed by such a large injury.\n\nWe're not even close to doing such a transplant.  Sorry.
481443
1. Nerve impulse signal integrity and discrimination for neural synaptic interface.\n\n2. Artificial muscle (polymer hydogel)\n\n3. Artificial bone using nanotechnology to grow as the subject grows this would also apply also to the artificial muscles.
362333
the cell would just die or be deleted by the body because it's impossible to go through mitosis without copying it DNA unless it's a sex cell then it goes through meiosis
156126
A head on ice would be able to survive for a while, especially if prior to separation induced hypothermia is used to trigger the mammalian diving reflex, and drugs which limit brain damage from anoxia are used.  This may give as much as 30-40 minutes to work with a severed head.  If the dead body is in good shape otherwise, such as a recent death from acute head trauma, and is similarly cooled rapidly to prevent tissue breakdown, you could possibly reattach most major components in that time.  Regrowing the severed spinal cord would be the tricky part, but there is a lot of research going on that suggests it may be possible, especially if correct treatment of the severed spinal cord is taken immediately.  Stem cell grafts or at least application of specific growth factors will probably be needed to complete the connection.  \n\nWith arteries, muscles, skin, and peripheral nerve connections restored, the person could be kept on a heart-lung machine until the spinal cord is repaired to maintain steady breathing and heartbeat. \n\nSo, in short, it's plausible with near-future medical technology, but it's probably risky enough to not be worth attempting yet.  Within 10-15 years, it could be done.  \n\nThe real question would be whether or not the newly connected head could correctly control the body it's attached to.  There are some general levels of organization to the distribution of nerve fibers in the spinal cord, but the I/O pattern in the cervical spinal cord of the grafted head wouldn't be an exact match for the spinal cord in the body.  If the signals are mismatched, and they probably will be, the results could be anything from loss of muscle coordination and control to chronic severe neurological pain.  Whether or not the plasticity of regrowth would allow this to correct itself is unknown.  \n\nIt might end up being easier to graft the head plus spinal cord into the donor body, since the spinal cord to peripheral nervous system connections, plus the cranial nerve to body connections, such as the vagus nerve, are much simpler than the spinal cord.   If bloodflow could be restored within the 30-40 minutes working time this would give surgeons time to finish the spinal graft.  Recovery would still be very extreme, since the spine would have to be completely opened up, and successful recovery of such an invasive procedure is currently beyond our medical capabilities, but there is a lot fo work with artificial spinal disks, bone grafts, and other systems for repairing damaged vertabrae.  \n\nI certainly wouldn't volunteer to be the first patient, but it's plausble that one day it could be done successfully.
424478
1. Impulse\n2. Dendrites, axon, and cell body\n3. Has nucleus that controls the cell\n4. Transmit impulse to cell body\n5. Carry impulse from one cell body to another\n6. The myelin sheath provides protection for the long and delicate axon and allows the impulse to travel faster by "jumping" from one Schwann Cell to another instead of travelling along the entire axon\n7. Synapse\n\nHope i was helpful!
468768
You may need a lobotomy.
589956
Average plant cell (30mirco meters)\n\naverage neuron (10 microns wide)
75478
CUT IT OFF AND START OVER .
525865
It may be a sign of nerve damage.  See your doctor.
490541
the autonomic nervous system is under involuntary control and the somatic nervous system is under voluntary control\n\nthere would be a lot more axons in the somatic nervous system because of muscle movement
372011
THIS IS NOT THE PREFERRED METHOD, BUT YOUR MOM CAN HAVE THE NERVE EXTIRPATED (REMOVED) AND CLEANED AND FILLED AT A LATER TIME WHEN SHE HAS MORE $ TO COMPLETE THE JOB.
248658
with its head cut off\n\nWhich is the way I feel every day
70941
The borders of the scar will be excised with a scalpel and the wound sutured back up.