Module 3: Health and Safety - IAFF

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IAFF Training for Hazardous Materials: Technician© Student Text Reproductive System The reproductive system in males includes testes, accessory glands (prostate), penis, and conducting tubes that lead from the testes to the outside of the body. Specific hormones act on the testes, stimulating them to produce testosterone and sperm. A number of toxicants have been associated with impairment of sperm and testosterone production and may even lead to sterility. In females, the principal reproductive organs consist of the ovaries and the uterus. Hormone production such as estrogen and the development and maturation of the ovum (egg) are key functions of the ovaries. These functions can be impaired by exposure to hazardous materials. Exposing a fertilized egg (either an embryo or a fetus) to a toxic substance may be harmful. 3-48 Module 3: Health and Safety
Student Text IAFF Training for Hazardous Materials: Technician© Certain individuals may be more susceptible to reproductive system toxicants because of their age, nutritional status, or other exposures. Toxic Effects Toxic effects include: • Sperm production: A decrease in sperm production can reduce fertility or even cause sterility. Examples of chemicals that reduce sperm production include dibromochloropropane (DBCP) and ethylene dibromide (EDB). • Infertility: The result of effects on the production of ovum (egg) or the pathway of the ovum • Impotence: Resulting from effects on the parasympathetic nervous system • Hormonal changes: Hormones regulate the male and female reproductive cycles. • Premature delivery or spontaneous abortion • Congenital malformations of developing embryos Examples of agents that have been associated with reproductive dysfunction in men are ionizing radiation, carbon disulfide, dibromochloropropane (DBCP), ethylene oxide, hexane, and lead. Examples that have been associated with reproductive dysfunction in women include ionizing radiation, carbon disulfide, methyl mercury, and lead. Module 3: Health and Safety 3-49
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Module 3: Health and Safety - IAFF

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