Overactive Bladder (OAB). OAB is another common type of urinary incontinence. It is also called urgency incontinence. OAB affects more than 30% of men and 40% of women in the U.S. It affects people's lives. They may restrict activities.
Hormones | Back to Top. The endocrine system is a collection of glands that secrete chemical messages we call hormones. These signals are passed through the blood to arrive at a target organ, which has cells possessing the appropriate receptor.
The Circulatory System. The heart, the blood, and the blood vessels make up a system for the transport of gases, nutrients, and chemical wastes. The primary functions of the circulatory system are the following: 1  To transport nutrients and oxygen to the cells.2  To remove waste and carbon dioxide from the cells.he primary functions of the circulatory system are the following: 1  To transport nutrients and oxygen to the cells. 2  To remove waste and carbon dioxide from the cells.