Cardiovascular system is a system responsible for the transportation of blood which converys oxygen, nutrients,hormones, waste materials and other materials to required designations in the body which were executed by simply diffusion prior to the development of the system thus vital for survival.
At this end of this lession, you should be able to understand what is meant by vasculogenesis understanding development of the heart as the chambers forms as well as the development of the great vessels (the great arteries and veins). What changes occur at birth, all this will help you understand the Anatomy of the adult heart.
The heart and great blood vessels
Cardiovascular system is the first system to develop and start functioning in the embryo. It is a broad area of study, covering the heart and blood vessels development as well as the lymphatic as some text book might include. This studies will concentrate on the development of the heart and blood vessels which are: arteries and veins as seen in this figure
This system starts developing during the third embryonic week form a pair lateral endocardial tubes and another paired dorsal tubes on each side of developing neural tube through the process of vasculogenesis and angiogenesis .