Pre assessment - Lesson 2 - Circulation and arteries

Where does the actual exchange of nutrients and gases between the blood and tissues occur?

• A) Arteries

• B) Veins

• C) Capillaries

• D) Venules

What is the primary purpose of double circulation in the human cardiovascular system?

• A) To enhance oxygen delivery to the tissues

• B) To ensure efficient nutrient absorption

• C) To maintain a continuous blood flow

• D) To separate oxygenated and deoxygenated blood

Which vessel is responsible for carrying oxygenated blood from the heart to the body tissues?

• A) Pulmonary artery

• B) Aorta

• C) Pulmonary vein

• D) Inferior vena cava

Which of the following statements best describes the function of arteries?

• A) Carry blood away from the heart

• B) Exchange oxygen and nutrients with tissues

• C) Collect deoxygenated blood from the body

• D) Carry blood towards the heart

What feature distinguishes veins from arteries?

• A) Thicker walls

• B) Presence of valves

• C) Carry oxygenated blood

• D) Supply blood to organs

What is a characteristic feature of capillaries?

• A) Thick muscular walls

• B) Large luminal diameter

• C) Thin walls for easy nutrient exchange

• D) Presence of valves

What is the main function of veins in the circulatory system?

• A) Pump blood to the body

• B) Carry oxygenated blood to the heart

• C) Prevent backflow of blood

• D) Exchange nutrients with tissues

Deoxygenated blood from the body tissues is primarily returned to the heart through which vessels?

• A) Arteries

• B) Veins

• C) Capillaries

• D) Arterioles

What is the main role of arterioles in the circulatory system?

• A) Transport oxygenated blood to organs

• B) Regulate blood pressure and flow to capillaries

• C) Carry deoxygenated blood back to the heart

• D) Exchange nutrients with tissues

Which blood vessels are directly involved in the pulmonary circulation, transporting blood between the heart and lungs?

• A) Pulmonary arteries and veins

• B) Aorta and vena cava

• C) Coronary arteries and veins

• D) Capillaries