2007-09-12 07:22:44 · 4 answers · asked by bubububububub 1 in Science & Mathematics ➔ Biology
you realize that you have made an error... kick your own azz keeping it in the foward motion!
2007-09-12 07:30:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I'm assuming that your talking about neuron impulses. Neuron impulses or signals only travel in one direction - that's just how the system works. However, each neuron reponds depending on if the impulses sent are received or not by the other neuron synapses.
2007-09-12 14:33:27 · answer #2 · answered by jemt113 2 · 0⤊ 0⤋
It works that way because the voltage gated sodium channels in the neuron membranes exist in 3 states: closed, open and inactive. When an action potential reaches a channel, it causes the sodium channel to open and sodium rushes in at that point and diffuses in both directions. The channel rapidly inactivates and cannot re-open for a period of time. The net result is that the action potential cannot travel "backward".
2007-09-12 14:36:50 · answer #3 · answered by hcbiochem 7 · 1⤊ 0⤋
hyperpolarisation prevents backward travelling of impulse
2007-09-13 13:20:16 · answer #4 · answered by Zhihao T 1 · 0⤊ 0⤋