Quick Answer. The function of a synaptic knob is to change the action potential that is carried by axons into a chemical message. The chemical message then interacts with the recipient neuron or effector. This process is called synaptic transmission.
Over-the-counter (OTC) medicines that are recommended for head or pubic lice include: 1  Permethrin creme rinse 1% (such as Nix), which is a common first choice for treating head lice. 2  Shampoos containing pyrethrins and piperonyl butoxide (such as Rid), which are left on the hair for 10 minutes and then rinsed out.
Scabies: Permethrin cream is the most commonly used prescription treatment for scabies. It is applied all over adult skin from neck down and left on overnight. Repeat in 7 days. Wash all clothes, bed linens in hot water. Itch can last for weeks, but mites should be killed. ...Read more.