Page Content. Clinical research aims to advance medical knowledge by studying people, either through direct interaction or through the collection and analysis of blood, tissues, or other samples. A clinical trial is one type of clinical research that follows a pre-defined plan or protocol.
The female reproductive system interacts with many other systems in the body. The most common is the endocrine system. The reproductive system relies on the endocrine system to produce hormones such as progesterone and estrogen, that help with the blood lining of the uterus and prepare the uterus for pregnancy.
Female reproductive organs. The female reproductive system is more complex than that of the male. It produces ova (egg cells); nourishes, carries, and protects the developing embryo; and nurses the newborn after birth. The system structures are the ovary, uterine tubes, uterus, vagina, vulva, and mammary glands.