Understanding the Circulatory System

Name the three types of blood vessels.

• arteries, veins, arteries

• arteries, capillaries, blood cells

• capillaries, veins, lymphatics

• arteries, veins, capillaries

What is the difference between systemic and pulmonary circulation?

• Systemic circulation only occurs in the heart.

• Systemic circulation serves the body, while pulmonary circulation serves the lungs.

• Pulmonary circulation delivers oxygen to the entire body.

• Systemic circulation is responsible for nutrient absorption in the intestines.

What is the primary role of the right atrium?

• To pump oxygenated blood to the body.

• To receive deoxygenated blood from the body and send it to the right ventricle.

• To regulate blood pressure in the arteries.

• To filter blood before it enters the lungs.

What is the primary function of arteries?

• The primary function of arteries is to transport oxygenated blood from the heart to the body.

• To regulate body temperature through heat exchange.

• To absorb nutrients from the digestive system.

• To transport deoxygenated blood from the body to the heart.

What role do capillaries play in the circulatory system?

• Capillaries transport oxygen from the lungs to the heart.

• Capillaries are responsible for pumping blood throughout the body.

• Capillaries store excess blood for later use.

• Capillaries enable the exchange of substances between blood and tissues.

How does the heart's electrical system control heartbeat?

• The heart's electrical system controls the heartbeat by generating and conducting electrical impulses that coordinate heart contractions.

• The heart's electrical system only affects the lungs.

• The heart's electrical system is controlled by the brain's signals.

• The heart's electrical system pumps blood directly to the body.

How do veins differ from arteries?

• Veins carry oxygenated blood and have thicker walls.

• Veins differ from arteries in that they carry deoxygenated blood, have thinner walls, and contain valves, while arteries carry oxygenated blood and have thicker walls.

• Arteries contain valves and carry deoxygenated blood.

• Veins have thicker walls and do not carry blood.

What is the significance of the coronary arteries?

• Coronary arteries transport deoxygenated blood away from the heart.

• Coronary arteries supply oxygenated blood to the heart muscle.

• Coronary arteries are responsible for filtering blood in the heart.

• Coronary arteries regulate blood flow to the lungs.

What is the main function of red blood cells?

• To store nutrients and vitamins.

• To transport oxygen and carbon dioxide.

• To produce insulin for the body.

• To fight off infections and diseases.

How do lifestyle choices affect the circulatory system?

• Lifestyle choices significantly affect the circulatory system by influencing heart health, blood pressure, and overall vascular function.

• Lifestyle choices have no impact on heart health.

• Dietary choices are irrelevant to blood pressure.

• Only genetics determine circulatory system health.