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.
The female reproductive organs perform similar functions for eggs and, following fertilization, support and maintain the offspring. MALE REPRODUCTIVE SYSTEM. The male reproductive organs are specialized to produce male sex hormones and produce and maintain the male sex cells called SPERM. The organs are adapted to transport sperm and supporting fluid to the female reproductive tract.