Which statement is true?
O Most blood is found in the arteriole portion of the vascular tree.
O At any given time about 90% of all capillaries are open.
O There are equal amounts of blood in the systemic circuit and the pulmonary circuit.
O Arterioles are known as capacitance vessels.
© About 60% of the blood is found in the systemic venous system.
© About 60% of the blood is found in the systemic venous system.
The true statement among the options provided is:
About 60% of the blood is found in the systemic venous system.