In the 1966 novel Fantastic Journey, by Isaac Asimov, a miniature submarine and crew travel throughout the human circulatory ...

Your body's circulatory system is a wondrous thing. It's made up of blood vessels that carry blood to and from your heart and also pumps blood to your lungs so you can breathe.

"Coffee not as bad for heart and circulatory system as previously thought." ScienceDaily. ScienceDaily, 4 June 2019. <www.sciencedaily.com / releases / 2019 / 06 / 190603084144.htm>.

"Aging process slows when older mice share circulatory system of young." ScienceDaily. ScienceDaily, 27 July 2023. <www.sciencedaily.com / releases / 2023 / 07 / 230727144010.htm>.