Cardiovascular System Flashcard

Front

What is vasodilation?

Back

Vasodilation is the widening of blood vessels, which decreases blood pressure by reducing vascular resistance.

Front

What is the importance of maintaining a compression rate of 100-120 per minute during CPR?

Back

This rate maximizes blood flow to vital organs, ensuring they receive adequate oxygen and nutrients during cardiac arrest.

Front

What happens when there is a blockage in the pulmonary artery?

Back

A blockage in the pulmonary artery leads to reduced oxygenation of blood, as blood cannot flow efficiently to the lungs for oxygen exchange.

Front

Which valve prevents backflow of blood into the left ventricle after contraction?

Back

The aortic valve prevents backflow into the left ventricle after it has contracted.

Front

What is the consequence of a malfunctioning mitral valve?

Back

A malfunctioning mitral valve can cause backflow of blood into the left atrium, leading to increased pressure and potential heart complications.

Front

Define blood pressure.

Back

Blood pressure is the force exerted by circulating blood on the walls of blood vessels, typically measured in millimeters of mercury (mmHg).

Front

What is the role of the aorta in the cardiovascular system?

Back

The aorta is the largest artery in the body, responsible for carrying oxygenated blood from the heart to the rest of the body.

Front

Explain the function of the pulmonary valve.

Back

The pulmonary valve controls blood flow from the right ventricle into the pulmonary artery, preventing backflow into the heart.

Front

What is cardiac output?

Back

Cardiac output is the volume of blood the heart pumps per minute, calculated as heart rate multiplied by stroke volume.

Front

What is the significance of the coronary arteries?

Back

Coronary arteries supply blood to the heart muscle itself, providing it with oxygen and nutrients necessary for its function.