Exam 13: The Vascular System

In the vascular system,an alternate pathway for blood flow is provided by vessels called a(n)____________________.

Blood pressure in the pulmonary circulation and capillaries is:

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

If venous return decreases,the heart contracts ____________________ forcefully,and cardiac output ____________________.

Venous return is important to return blood to the:

Blood flow into capillary networks is regulated by:

Fibrous connective tissue forms the ____________________ layer of an artery,and its function is to ____________________.

If venous return decreases,cardiac output will ____________________.

In capillaries,nutrients dissolved in plasma are brought to tissues by the process of:

In fetal circulation,the ____________________ permits blood to flow from the pulmonary artery to the aorta.

The circle of Willis supplies the ____________________ and is an example of an arterial ____________________.

Slow blood flow is important to:

The hormone that raises blood pressure by increasing the heart rate is:

ascending aorta