haveing an emt license will help to get on a fire dept.. some fd's require it.. especially in the bigger cities.. if you are still in school, talk to your councilers about what classes you need to take.. when i was in school, there wasnt anything called firescience...
Circulatory System. This system is made up of the heart, blood, blood vessels, and lymphatics. It is the bodyâs delivery system, concerned with circulating blood to deliver oxygen and nutrients to every part of the body.
Open circulatory systems are found in mollusks, arthropods and several other invertebrates. Open circulatory systems work by pumping blood into a hemocoel, which in turn diffuses blood and pumps it back into the circulatory system. Blood is then pumped by the heart into cavities, organs and tissues of the organism.