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.
Innie vs. Outie. Inverted nipples are fairly common. Anywhere from 10 to 20 percent of all women have them. An inverted nipple is caused by shorter-than-usual milk-bearing ducts in the breast. Those ducts are attached to the nipple and, in these cases, prevent the nipple itself from projecting.