i need help?

Question

explain how light touch stimulates a nerve impulse.
how does the impulse travel to the brain.
where in the brain is the impulse received?

Answer 1

Impulse travels by electricity to the brain through the nervous system. I am in a rush [shouldn't be online...] but here's a link that you may want to check out.

http://www.biologymad.com/NervousSystem/nervoussystemintro.htm