Exploring the Human Circulatory System

What are the four main chambers of the heart?

• aorta, pulmonary artery, vena cava, coronary artery

• right atrium, right atrium, left ventricle, left ventricle

• right atrium, right ventricle, left atrium, left ventricle

• upper chamber, lower chamber, left chamber, right chamber

What is the function of the left ventricle?

• To receive blood from the right atrium.

• To pump oxygenated blood to the body.

• To pump deoxygenated blood to the lungs.

• To regulate blood pressure in the arteries.

Name the three types of blood vessels.

• Veins, capillaries, arteries, venules

• Arteries, veins, capillaries

• Arteries, veins, lymphatics

• Arteries, capillaries, plasma

What is the primary function of arteries?

• To carry deoxygenated blood to the heart.

• To carry oxygenated blood away from the heart.

• To transport nutrients to the lungs.

• To regulate blood pressure in the veins.

Describe the role of veins in the circulatory system.

• Veins transport deoxygenated blood to the heart and prevent backflow with valves.

• Veins are responsible for pumping blood throughout the body.

• Veins filter toxins from the blood before it reaches the heart.

• Veins carry oxygenated blood away from the heart.

What is the process of blood circulation called?

• Respiration

• Circulation

• Excretion

• Digestion

How does blood flow through the heart?

• Blood enters the heart through the left atrium only.

• Blood flows through the heart from the body to the right atrium, to the right ventricle, to the lungs, back to the left atrium, to the left ventricle, and then out to the body.

• Blood circulates through the heart in a single loop without going to the lungs.

• Blood flows directly from the left ventricle to the body.

What are the main components of blood?

• Muscle cells, nerve cells, and connective tissue.

• Red blood cells, white blood cells, platelets, and plasma.

• Red blood cells, white blood cells, and hormones.

• Oxygen, carbon dioxide, and nutrients.

What is the function of red blood cells?

• Fight against infections.

• Regulate body temperature.

• Produce hormones for growth.

• Transport oxygen and carbon dioxide in the body.

How do white blood cells contribute to the circulatory system?

• White blood cells are responsible for blood clotting and wound healing.

• White blood cells help protect the body from infections and support immune responses within the circulatory system.

• White blood cells primarily aid in digestion and nutrient absorption.

• White blood cells transport oxygen throughout the body.