e-stimulating hormone, luteinizing hormone, and other sex hormones. The changes associated with puberty are controlled by the sex hormones that are secreted by the endocrine system. In male, the onset of puberty causes the hypothalamus to produce several kinds of hormones that interact with the pituitary gland. The pituitary is a gland located at the base of the hypothalamus that secretes hormones used to influence many different physiological processes of the body. The hypothalamus secretes a hormone that causes the anterior lobe of the pituitary to release two other hormones: follicle-stimulating (FSH) and luteinizing (LH). When released into the bloodstream, FSH and LH are transported to the testes. In the testes, FSH causes the production of sperm cells. LH causes endocrine cells in the testes to produce the testosterone. The testosterone is the steroid hormone responsible for the growth and development of secondary sex characteristics in a male. These characteristics include the growth and maintenance of male sex organs; the production of sperm; the deepening of the voice; an increase in body hair; and an increase in muscle mass and in the growth rates of the long bones of the arms and legs. Evidence suggests that testoste1rone may also be responsible for an increase in increase in aggressive behavior.The Female Reproductive SystemThe main function of the female reproductive system are to produce eggs, the female sex cells, and to provide an environment for a fertilized egg to develop. The female reproductive system includes two ovaries, two oviducts or fallopian tubes, the uterus, and the vagina. Egg production takes place in the two ovaries. Each ovary is about the size and shape of an almond. One ovary is located on each side of the lower part of the abdomen.The open end of the oviduct is located close t each ovary. The oviduct is a tube that transports eggs from the ovary to the uterus. Peristaltic contractions...
