each Titles in the series are: #1: Circulatory System Resting only briefly between beats, your four chambered heart sends blood surging through the double circuit that makes up your circulatory system, bringing in food and carrying away wastes from every cell in your body.
(your four chambered heart; sends; blood) Context(your four chambered heart sends,List([90, 121))):(each Titles in the series; are; #1) (the double circuit; makes up; your circulatory system)
your four chambered heart sends,List([90, 121))
your four chambered heart each Titles in the series the double circuit
sends are makes up
blood
#1
your circulatory system