Exam 13: The Vascular System

The venous return mechanism that is especially important for the veins of the legs is the ____________________.

Which vein is NOT paired with the part of the body it drains of blood?

In pulmonary circulation, blood is pumped to the lungs by the:

The function of the middle layer of an artery is to:

When vasodilation is needed to lower BP, the arteries receive:

The function of the outer layer of an artery is to:

Which of the following statements are true of venous return? (Read carefully and select all of the correct statements.)

Which of the following statements are true of the body's responses to a small loss of blood? (Read carefully and select all of the correct statements.)

The hormone that raises blood pressure by increasing the reabsorption of sodium and water by the kidneys is:

The flow of venous return is kept to one direction only by the ____________________ in the veins.

The diameter of arteries and veins is regulated by a center in the:

In fetal circulation, the umbilical vein carries blood from the ____________________ to the ____________________.

Which of the following statements are true of pulmonary circulation? (Read carefully and select all of the correct statements.)

In capillaries, blood pressure provides the energy for the process of ____________________.

The hormone that raises blood pressure by causing vasoconstriction throughout the body is:

The ____________________ of the brain regulates the diameter of arteries and veins, and it has a ____________________ area and a ____________________ area.

The tissues of the wall of an artery or vein, in order from innermost to outermost, are:

An anastomosis in the vascular system is a connection between:

Which of these is NOT an example of the purpose of hepatic portal circulation?

Which of the following statements are true of the reflex arc for heart rate and blood pressure? (Read carefully and select all of the correct statements.)