Exam 12: The Heart

The branches of the ascending aorta are the two ____________________ arteries, which take blood to the ____________________.

The aortic and pulmonary semilunar valves prevent backflow of blood from the:

Within the chambers of the heart, clotting is prevented by the:

The aortic and pulmonary semilunar valves prevent backflow of blood from the ____________________ to the ____________________ when the ____________________ relax.

The heart rate is decreased by impulses carried by ____________________ nerves.

In the cardiac cycle, which statement is true of blood flow from the atria to the ventricles?

Exercise cardiac output is 9900 mL. What are the pulse and stroke volume?

The aortic body contains:

The myocardium is found:

The part of the brain that regulates heart rate is the:

The heart is located in an area called the ____________________ and is protected by the ____________________.

During the cardiac cycle, when the atria are in systole, the ventricles are in ____________________.

The right and left AV valves prevent backflow of blood from the ____________________ to the ____________________ when the ____________________ contract.

The amount of blood pumped by the left ventricle in one minute is called ____________________.

The carotid sinus contains:

The vagus nerves carry impulses:

The heart is ____ to the lungs and ____ to the diaphragm.

The sequence of events in one heartbeat is called the ____________________.

During exercise, if cardiac output is 15,000 mL and stroke volume is 120 mL, then pulse is ____________________.

The middle layer of the pericardial membranes is the ____________________ pericardium.