study with quizlet and memorize flashcards containing terms like there are 3 parts of the cardiovascular system, heart muscle is made of, where is the heart located? study with quizlet and memorize flashcards containing terms like what is the cardiovascular system?, what does the cardiovascular system consist of?, what. the cardiovascular system is a vital organ system which is quite literally at the centre of everything. Comprised of the heart, blood vessels and the blood itself, it is. the basic function of the blood vessels is to serve as conduits…