Exam 13: The Vascular System

In the fetus,the ductus arteriosus permits blood to flow:

The venous return mechanism that is especially important for the veins in the thoracic cavity is the ____________________.

Renin is secreted by the ____________________ when blood pressure ____________________.

During exercise,blood flow to the skeletal muscles will:

The function of the lining in both arteries and veins is to:

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

The respiratory pump is especially important for venous return by the veins in the ____________________.

Which artery is NOT paired with the part of the body to which it supplies blood?

When venous return increases,the heart contracts more forcefully; this is called ____________________.

In fetal circulation,exchanges between fetal blood and maternal blood take place in the ____________________.

During exercise,blood flow to the skin will:

The fetal structure that permits blood to flow from the right atrium to the left atrium is the:

The hormone that raises blood pressure by directly increasing the reabsorption of water by the kidneys is ____________________.

When vasoconstriction is needed to raise BP,the arteries receive:

Veins carry blood from:

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 large arteries are elastic and are stretched by left ventricular ____________________,thereby lowering ____________________ BP.

Which of the following statements are true of the locations of arteries and veins? (Read carefully and select all of the correct statements.)

The ____________________ of the brain regulates the diameter of arteries and veins.