According to the University of Rochester Medical Center, the primary functions of gonads in men and women are to secret hormones and to produce sperm and ova. In men, the gonads are the testes, and in women, the gonads are the ovaries. The gonads are considered endocrine glands because they release hormones.Know More
The University of Rochester Medical Center states that the male gonads are responsible for releasing the male sex hormone testosterone. Testosterone helps the male body to mature its skeletal and muscular system, develop the reproductive organs, enlarge the larynx, grow body hair and increase the male sex drive. Testosterone is responsible for the development of male characteristics. The testes also produce and release sperm for sexual reproduction. Testosterone begins to work shortly after birth, tapers off during childhood and then continues to produce regularly from puberty throughout adulthood.
The University of Rochester Medical Center explains that the female gonads secrete estrogen and progesterone. Estrogen facilitates puberty, fat storage and the development of the uterus and vagina. Progesterone thickens the lining in the uterus to prepare for pregnancy. Both progesterone and estrogen control fertility and the menstrual cycle. The ovaries produce and release the ova, or egg, for sexual reproduction.Learn more about Organs
Professor Tim Jacob of Cardiff University, writing for the Physiological Society, states that scientists believe that women have more taste buds than men because of evolution. Women are responsible for the health of their babies, so it was evolutionarily important for women to immediately recognize the tastes of toxins that might harm a child.Full Answer >
Bronchioles are tiny airways that carry oxygen to alveoli, or air sacs, in the lungs and help stabilize breathing in the respiratory system, according to About.com. Bronchioles are lined with smooth muscular walls that constrict or expand to regulate airflow and prevent irritants from passing further along the respiratory tract.Full Answer >
The function of the pharynx is to transfer food from the mouth to the esophagus and to warm, moisten and filter air before it moves into the trachea. The pharynx is a part of both the digestive and respiratory systems.Full Answer >
The function of the iris is to control light levels in the eye. The round, black dot in the center of the iris is called the pupil.Full Answer >