Exam 12: The Heart

Stroke volume is the amount of blood pumped by a ventricle in ____________________.

Within the heart, backflow of blood is prevented by the ____________________.

The area in which the heart is located is called the ____________________.

The cardiac inhibitory center uses these nerves:

The vessel that takes blood from the right ventricle to the lungs is the:

The coronary sinus is the union of the coronary ____ and returns blood to the ____.

The tricuspid valve prevents backflow of blood from the ____________________ to the ____________________.

Resting cardiac output is 5440 mL. What are the pulse and stroke volume?

The part of the heart muscle that usually depolarizes first in a heartbeat is the ____________________.

The myocardium forms the ____________________ of the heart.

In one cardiac cycle, when the ventricles are in systole, the atria are in:

For the myocardium, the most important substance in the blood is ____________________.

The vessel that takes blood from the left ventricle to the body is the:

The cardiac cycle is the:

The name for the muscular walls of the chambers of the heart is:

The part of the heart that initiates each beat is the ____________________.

Which statement is NOT true of the regulation of heart rate?

If stroke volume is 70 mL and pulse is 74 bpm, what is cardiac output?

The heart is a double pump: the left side of the heart receives blood from the ____________________ and pumps it to the ____________________.

The atria of the heart produce the hormone ____________________ when blood pressure ____________________.