ELA.6.9A Compare and contrast the stated or implied purposes (e.g., inform, influence, entertain, express) of different authors writing on the same topic. ELA.6.10A Summarize the main ideas and supporting details in text, demonstrating an understanding that a summary does not include opinions.
The shape of the breast, its size, position of nipple and their numbers are also genetically determined. Any alteration in the basic genes or the presence of a predetermined gene that governs the shape and size of the nipples can cause the nipples to be inverted.
There are three grades of inverted nipples, defined on how easily the nipple may be protracted and the degree of fibrosis existent in the breast as well as the damage it has caused on the milk ducts. Inverted nipple Grade 1 refers to nipples that can easily be pulled out, by using finger pressure around the areola.