Exam 12: The Heart

The electrical activity of the heart may be seen in a tracing called a(n)____________________.

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

The function of the myocardium is to:

The blood vessels that circulate blood throughout the heart itself are called:

In the cardiac cycle,some passive blood flow occurs from the ____________________ to the ____________________.

During one cardiac cycle:

The myocardium forms the ____________________ of the heart.

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

The normal resting heart rate for a near-term fetus is:

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

Cardiac output is the amount of blood pumped by the left ventricle in ____________________.

The pulmonary semilunar valve prevents backflow of blood from the ____________________ to the ____________________.

In the cardiac cycle,the most important pumping of blood occurs from the ____________________ to the ____________________.

Which statement is NOT true of the ventricles of the heart?

Stroke volume is the amount of blood pumped by a ventricle in one:

The term for contraction of chambers of the heart is:

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

The function of the chordae tendineae and papillary muscles is to:

The carotid and aortic bodies contain ____________________ to detect changes in ____________________.

The layer of the heart wall that prevents abnormal clotting is the ____________________.