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.
Creams and lotions. The two most widely used treatments for scabies are permethrin cream and malathion lotion. Permethrin is usually recommended first, and malathion lotion is used if the permethrin cream proves ineffective. Both medications contain insecticides that kill the scabies mite.reams and lotions. The two most widely used treatments for scabies are permethrin cream and malathion lotion. Permethrin is usually recommended first, and malathion lotion is used if the permethrin cream proves ineffective. Both medications contain insecticides that kill the scabies mite.