Специална Фитофармация и Екотоксикология

Действие на нервните отрови върху организмите:

http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter14/animation__the_nerve_impulse.html

http://www.biologymad.com/nervoussystem/nerveimpulses.htm

http://www.youtube.com/watch?v=jcZLtH-Uv8M

http://www.kaminata.net/mehanizam-na-provezhdane-na-nervniya-impuls-urok-t3622.html