Exam 8: Heart and Blood Vessels

The cardiac cycle consists of a period of heart contraction called systole and a period of heart relaxation called diastole.

Smooth muscle, in the form of ________, is frequently located where arterioles meet capillaries.

Electrical impulses that stimulate contraction of heart muscles are initiated in the

If you decide to ride your bike at a moderate to fast pace for a long period of time, your blood pressure drops and heart rate increases. Once you stop the exercise, how does your body respond to resume a normal heart rate and blood pressure?

Exchange of nutrients and gases between blood and tissues is the primary function of

Which one of the following best describes an angiogram?

An electrocardiogram is used to

Deoxygenated blood leaving the right side of the heart next passes through the ________ circuit, where the blood is reoxygenated.

The atrioventricular valves are closed when the

In which one of the following blood vessels is blood under the lowest pressure?

Which one of the following plays the most significant role in regulating the distribution of blood into tissues?

Which one of the following is TRUE regarding baroreceptors?

When blood pressure falls below normal, the condition referred to as ________ results.

Given the following components of the cardiac conduction cycle, which one of the following best describes the movement of the stimulus that causes a heart contraction? A. atrioventricular bundle B. sinoatrial node C. atria D. atrioventricular node E. Purkinje fibers F. ventricles

The smallest arteries are called ________; the smallest veins are called ________.

Cardiac output can be calculated by

Heart murmurs result from the incomplete closure of ________.

Arthrosclerosis is a condition that results in a thickening of arterial walls due to buildup of fatty deposits containing

Deoxygenated blood in the right side of the heart never mixes with the oxygenated blood in the left side of the heart.