What are the scientific names of the components of the circulatory system?
The concept of "scientific names" is something of a myth. In science, we use names to describe things with specificity. Sometimes, "scientific names" are just normal everyday names. For example, no scientist would ever dream of using the term "dihydrogen monoxide" to describe water- we just call water "water" and yet "dihydrogen monoxide" would certainly be accurate. Calling the digestive system "the digestive system" is just about as scientific as it needs to be.
We cannot say system A repairs damaged cells the way the circulatory system transports blood to every part of the body. Cells of particular tissues working for a set of organs to carry out a particular system will fix within itself, i.e; the circulatory system within itself, the reproductive system within itself.
Scientific names employ the naming system Binomial nomenclature, which lists an organism according to genus and species, as Genus species. This eliminates the potential for multicultural ambiguity and confusion, as scientific names are universal. Also, the nomenclature of an organism tells you about its evolutionary characteristics, something common names usually do not even suggest.
Scientific names are binomial, so they contain the genus and species of a particular organism. This naming system is more useful than common names as it shows how closely two species may be related. It is also useful because these names are used all over the world, unlike common names which may change in different countries.