A centripetal force (from Latin centrum center and petere to seek) is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.
There are a number of things that can cause a whitish coating or white spots to develop on the tongue, including the f ollowing: 1  Leukoplakia. 2  Oral thrush. 3  Oral lichen planus.
Quick Answer. Small white bumps on the lips are no cause for concern, but instead are a harmless condition known as Fordyce spots that are caused by minor sebaceous oil glands beneath the skin, according to NetWellness. They are the same type of sebaceous glands that underlie hair follicles, but in a location where no hair grows.