Exam 13: The Vascular System

Starling's law of the heart says that when cardiac muscle fibers are stretched,they will:

Which statement is NOT true of the circle of Willis?

The blood pressure in pulmonary circulation is always ____________________ to prevent filtration and accumulation of fluid in the ____________________.

Exchanges between fetal blood and maternal blood take place in the:

The effect of the hormone ADH on blood pressure is to:

The outer layer of the wall of a vein is thin because ____________________ in veins is low.

The layer in the wall of an artery that helps maintain blood pressure is the:

Blood flow is slowest in ____________________,and this is important to permit ____________________ for exchanges of materials.

The layer of the wall of an artery that helps prevent rupture is the ____________________.

Put the parts of the aorta in the proper sequence, beginning at the left ventricle: 1. abdominal aorta 2. aortic arch 3. ascending aorta 4. thoracic aorta

Anastomoses are important if a blood vessel becomes blocked because they:

Arteries carry blood from:

Blood from the digestive organs and spleen flows into the liver through the:

During exercise,blood flow to the heart will ____________________,and blood flow to the skeletal muscles will ____________________.

The layer in the wall of an artery that is smooth to prevent abnormal clotting is the:

Two hormones that affect blood pressure because they affect blood volume are ____________________ and ____________________.

Following a small loss of blood,the arteries will:

One purpose of portal circulation is to enable the liver to receive the iron of ____________________ destroyed in the spleen and ____________________ any excess.

Which statement is true of the effect of the elasticity of the large arteries on BP?

To compensate for a small loss of blood,the arteries will ____________________.