Cardiovascular System

Front

What is vasodilation?

Back

Vasodilation is the process by which blood vessels widen, increasing blood flow.

Front

What is vasoconstriction?

Back

Vasoconstriction is the process by which blood vessels narrow, decreasing blood flow.

Front

What is atherosclerosis?

Back

Atherosclerosis is a disease characterized by the buildup of plaque in the arteries, leading to reduced blood flow.

Front

What do pulmonary arteries do?

Back

Pulmonary arteries carry oxygen-poor blood from the heart to the lungs for oxygenation.

Front

What is the main function of the ventricles in the heart?

Back

The main function of the ventricles is to pump blood out of the heart.

Front

What are the superior and inferior vena cava?

Back

The superior and inferior vena cava are the main veins that bring deoxygenated blood to the right atrium of the heart.

Front

What is the role of the aorta?

Back

The aorta is the main artery that carries oxygen-rich blood from the heart to the body.

Front

What is the function of the heart valves?

Back

Heart valves ensure unidirectional blood flow through the heart chambers.

Front

What is the difference between oxygenated and deoxygenated blood?

Back

Oxygenated blood is rich in oxygen and is carried from the lungs to the body; deoxygenated blood is low in oxygen and is carried from the body to the heart.

Front

What is the cardiac cycle?

Back

The cardiac cycle is the sequence of events in one heartbeat, including contraction (systole) and relaxation (diastole) of the heart.