The symptoms vary enormously between people with myasthenia gravis: 1  The muscles around the eyes are most commonly affected first, as these are constantly used and can quickly tire. 2  Muscles around the face and throat are also often affected. 3  Weakness in the arms, hands, fingers, legs and neck may develop.
In its most general form, a nipple is a structure from which a fluid emanates. More specifically, it is the projection on the breasts or udder of a mammal by which, in females, breast milk is delivered to a mother's young.
This also causes the areolae to become narrower, but sexual stimulation will temporarily expand the whole breast. Unlike a baby's bottle, a real nipple has more than one hole, or port (duct). It actually may have as many as 5 to 25 pores, usually one for each lobule in the breast. Nipples may be classified by their shape. If they come forward from the breast, they are considered to be prominent.