Question 1: The heart is primarily responsible for which of the following functions?

Answer: Pumping blood

Question 2: True or False: The veins carry blood away from the heart.

Answer: False

Question 3: Name the largest artery in the human body and describe its function.

Answer: The aorta; it carries oxygenated blood from the heart to the rest of the body.

Question 4: Calculate the cardiac output if the heart rate is 70 beats per minute and the stroke volume is 70 ml. Use the formula: Cardiac Output = Heart Rate x Stroke Volume.

Answer: 4900 ml/min

Question 5: Match the following terms to their definitions:

Answer: See full answer key

Question 6: List the sequence of blood flow through the heart starting from the right atrium.

Answer: See full answer key

Question 7: Fill in the blank: The _______ is a muscular organ that pumps blood through the circulatory system.

Answer: heart

Question 8: Discuss the role of red blood cells in the circulatory system.

Answer: Red blood cells carry oxygen from the lungs to the rest of the body and return carbon dioxide from the body to the lungs to be exhaled. They contain hemoglobin, which binds to oxygen.

Question 9: True or False: The left side of the heart deals with deoxygenated blood.

Answer: False

Question 10: Explain why the walls of the left ventricle are thicker than the right ventricle.

Answer: The left ventricle has thicker walls to pump blood at a higher pressure to the entire body.

Question 11: What is the function of platelets in the blood?

Answer: Platelets help in blood clotting to prevent excessive bleeding.

Question 12: Multiple choice: Which component of blood is responsible for transporting nutrients, hormones, and proteins?

Answer: Plasma

Question 13: Multiple choice: What is the primary function of white blood cells?

Answer: Fighting infections