Circulation in the Cardiovascular System Quiz

Kidneys are part of the renal system, not the cardiovascular system.

Red blood cells carry oxygen from the lungs to the rest of the body.

Alveolus is a small air sac in the lungs, not a blood vessel.

The cardiovascular system transports oxygen, nutrients, and hormones throughout the body.

The cardiovascular system primarily transports oxygen, nutrients, and hormones.

The left ventricle pumps oxygen-rich blood to the body.

The aorta is the main artery carrying blood from the heart to the body.

Pulmonary arteries carry oxygenated blood from the lungs to the heart.

Blood pressure is the pressure of blood against the walls of arteries.

Arrhythmia is an abnormal heart rhythm.

Platelets are blood cells responsible for blood clotting.

The mitral valve prevents backflow of blood from the left ventricle to the left atrium.

The lymphatic system maintains fluid balance and helps with immune function.

The aorta is the largest artery, originating from the left ventricle of the heart.

Diastole is the relaxation phase of the cardiac cycle when the heart fills with blood.

Regular exercise reduces the risk of cardiovascular disease.

The vena cava returns deoxygenated blood from the body to the heart.

A normal blood pressure reading is typically 120/80 mmHg or lower.

Arrhythmia is an irregular heartbeat.

Capillaries are tiny blood vessels where exchange of nutrients and gases occurs.

High blood pressure increases the risk of heart disease and stroke.

Atherosclerosis is the hardening and narrowing of arteries due to plaque buildup.

Coronary artery disease occurs when plaque builds up in the coronary arteries.

Smoking contributes to the buildup of plaque in the arteries, leading to atherosclerosis.

Cardiomegaly refers to abnormal enlargement of the heart.