Human Cardiovascular System Quiz

Right atrium receives deoxygenated blood from the body via the vena cava.

Arteries transport blood away from the heart to various parts of the body.

Atrium is not a type of blood vessel; the major types are arteries, veins, and capillaries.

The average resting heart rate for adults typically ranges between 60-80 beats per minute.

The left ventricle pumps oxygenated blood to the body through the aorta.

The pulmonary vein carries oxygenated blood from the lungs to the heart's left atrium.

Neurons are not a component of blood; blood consists of plasma, red and white blood cells, and platelets.

Myocardial infarction refers to the condition where blood flow to a part of the heart muscle is blocked, leading to tissue damage.

Epinephrine, also known as adrenaline, is released in response to stress or danger, increasing heart rate and blood pressure.

Mitral valve, also known as the bicuspid valve, regulates blood flow between the left atrium and left ventricle.

Atherosclerosis is a condition where fatty deposits accumulate in arteries, causing them to narrow and restrict blood flow.

Hypotension refers to abnormally low blood pressure, which may cause dizziness, fainting, or shock.

Arteries carry oxygenated blood away from the heart to supply oxygen to the body tissues.

Capillaries have the smallest diameter among blood vessels, allowing for nutrient and gas exchange between blood and tissues.

Diastole is the phase of the cardiac cycle where the heart relaxes and fills with blood.

Digestive enzymes are not involved in blood pressure regulation; factors include blood volume, heart rate, and arterial stiffness.

Regular exercise is not a risk factor; risk factors include smoking, high blood pressure, and high cholesterol.

The AV node coordinates the heartbeat by transmitting electrical signals from the atria to the ventricles.

The coronary artery is not part of the heart's electrical conduction system; components include SA node, AV node, and Purkinje fibers.

The main function of the cardiovascular system is to transport oxygen, nutrients, hormones, and waste products to and from the cells.