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| that measures are taken during the most fertile part of the cycle to avoid or to increase the chances for pregnancy. Fertility awareness is beyond the scope of this book. Also, while there are several common problems associated with the cervix, this book does not address them due to the complexity of the treatments. |
| The Vulva and the Vagina |
| The vulva is the external skin folding of the female genitals. It consists of the labia majora and the labia minora, the two surrounding ''lips'' of the opening of the vagina. The vagina is the internal canal that extends from the vulva to the cervix. The walls of tissue lining the vagina are mucous membranes which contain folds that enable the tissue to stretch during intercourse. There are normal stores of glucose (the body's major energy source) called glycogen in the vagina on which the many normal bacteria feed. This process maintains the vagina in an acid range, prohibiting the growth of many unfavorable bacteria and yeast. When that acidity is altered, infections of bacteria or yeast are more possible. Sperm need a less acidic environment in which to swim. Thus they will secrete a chemical to lessen the acidity in the vaginaa must for their survival. |
| The Breast |
| Female breasts consist of glandular tissue which is surrounded by protective fatty and connective supportive tissues. Called mammary glands, their glandular tissue develops initially before a baby girl is born and will mature under puberty's hormonal in- |
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