  In traditional engines (not overhead cam), the camshaft pushes lifters UP. Lifters push the pushrods UP, but the valves need to be pushed DOWN... so the rocker arm rock â¦ s on a shaft that pushes one side down when the other side goes up. It's not a difficult job.Rocker arms aren't doing the most stressful job in the engine, but they do eventually wear out.ifters push the pushrods UP, but the valves need to be pushed DOWN... so the rocker arm rock â¦ s on a shaft that pushes one side down when the other side goes up. It's not a difficult job. Rocker arms aren't doing the most stressful job in the engine, but they do eventually wear out.
1 These nerve cells are found in a tiny patch of tissue high up in the nose, and they connect directly to the brain.  Gustatory (taste nerve) cells are clustered in the taste buds of the mouth and throat. They react to food or drink mixed with saliva. Many of the small bumps that can be seen on the tongue contain taste buds. These surface cells send taste information to nearby nerve fibers, which send messages to the brain.
Best Answer: sensory receptors. in mammals, the cells in the nose with these receptors are called olfactory cells, while in the tongue it is called taste receptor cells.taste receptor cells are clustered into what we know as taste buds.hope that helps. Source(s):or the tongue, it is more complicated. There are two types of receptors, the pressure sensitive receptors (general somatic afferent) and the chemical receptors (special sensory afferent). The chemical receptors which are located on your taste buds recognize 4 different tastes, sweet, sour, salty and bitter.