Understanding that the circulatory system is a closed circuit is important when considering blood flow and blood pressure.True false question.TrueFalse

How can the circulatory system be described?Multiple choice question.a mixed system (contains one open and one closed circuit)an open systema closed system

True or False: The circulatory system is a natural physical system.

Fill in the Blank QuestionFill in the blank question.Humans have a circulatory system, as blood is always moving through blood vessels and the heart.

State the two types of circulatory system in humans.

The cardiovascular system includes the heart and blood vessels.True false question.TrueFalse