It plays an important role in the body's immune system by producing white blood cells that help in fighting infections. The thymus gland is situated in the chest, behind the breastbone, and between the lungs. The thyroid gland is located in the neck and produces the thyroid hormone that regulates vital body functions such as heart rate, metabolism, weight, temperature, and blood pressure. This gland also controls the function of other endocrine glands. The testes produce testosterone and sperm.The pituitary gland is situated at the base of the brain and secretes hormones such as growth hormone, adrenocorticotrophic hormone, thyroid stimulating hormone, luteinizing hormone, and many others. These hormones regulate the menstrual cycle.Ī male's testes are located in the scrotum. In addition to containing the egg cells necessary for reproduction, the ovaries also produce the hormones estrogen and progesterone. The pancreas makes insulin, which is important for blood sugar control.Ī female's ovaries are located on both sides of the uterus, below the opening of the fallopian tubes (which extend from the uterus to the ovaries). It plays a role in digesting food, but it also makes hormones. The pancreas is located behind the stomach. The hormones made by the adrenal gland also maintain blood pressure and blood glucose, and plays a role in sexual development. The adrenal glands make hormones that help the body deal with stress and illness. The adrenal glands are located on top of each kidney. Both the thyroid and parathyroid glands also play a role in controlling the level of calcium in the body. The thyroid plays an important role in the body's growth and development, as well as metabolism. The thyroid gland and parathyroid glands are located in front of the neck, below the larynx (voice box). It also makes the hormones prolactin and vasopressin, and growth hormone. It regulates the amounts of hormone made by the thyroid gland, adrenal gland, and testes or ovaries. It is the master gland in the endocrine system. The pituitary gland is located at the base of the brain and is about the size of a pea. It also makes hormones that help to control water balance, sleep, temperature, appetite and blood pressure. It makes hormones that increase or decrease the release of the hormones made in the pituitary gland. The hypothalamus is located in the center of the brain.

Levels of water, salt and sugar in the body.The endocrine system makes hormones that help control: Hormones are substances that act as 'messengers' to control many body functions. The endocrine system is made up of seven different glands that make chemicals called hormones.