The Circulatory System

What is the main function of the circulatory system?

• To transport blood throughout the body

• To digest food

• To provide structural support

• To regulate body temperature

What are the three main components of the circulatory system?

• Heart, Vessels, Blood

• Lungs, Heart, Blood

• Arteries, Veins, Capillaries

• Blood, Plasma, Platelets

What is the role of capillaries in the circulatory system?

• Connect arteries and veins

• Pump blood

• Carry oxygen-rich blood

• Remove waste products

What is the largest vein in the human body?

• Vena Cava

• Pulmonary Vein

• Aorta

• Coronary Vein

What is the average blood volume in an adult?

• 5 to 6 liters

• 3 to 4 liters

• 7 to 8 liters

• 1 to 2 liters

What is the function of red blood cells?

• Carry oxygen

• Fight infections

• Clot blood

• Transport nutrients

What is the shape of red blood cells?

• Biconcave

• Round

• Flat

• Cylindrical

What happens during a stroke?

• Blood flow to the brain is stopped

• Heart stops beating

• Blood pressure drops

• Blood vessels expand

What is the normal pulse rate for an adult?

• 60-100 beats per minute

• 40-60 beats per minute

• 100-120 beats per minute

• 80-100 beats per minute

What is the primary role of platelets in the blood?

• Help with blood clotting

• Transport oxygen

• Fight infections

• Carry nutrients