Circulatory System Quiz

What is the primary function of capillaries in the circulatory system?

• To transport oxygenated blood from the heart to the body

• To exchange nutrients and waste between blood and tissues

• To carry deoxygenated blood back to the heart

• To regulate blood pressure in the arteries

Which component of blood is responsible for clotting?

• Red blood cells

• White blood cells

• Platelets

• Plasma

What can you find in plasma?

• Only red blood cells

• Nutrients, hormones, and waste products

• Only white blood cells

• Only platelets

Why are platelets important?

• They carry oxygen

• They help in blood clotting

• They transport hormones

• They produce antibodies

Tags

NGSS.HS-LS1-3

Which blood vessel carries blood back towards your heart?

• Arteries

• Veins

• Capillaries

• Lymph vessels

Which of the following is NOT dissolved in plasma?

• Food from intestines

• Oxygen

• Carbon dioxide

• Hormones

Where are red blood cells produced in the body?

• In the liver

• In the spleen

• In the bone marrow

• In the lymph nodes

What is the primary function of phagocytes?

• Transport oxygen

• Ingest bacteria

• Produce antibodies

• Clot blood

What are platelets made from?

• Large cells in bone marrow

• Red blood cells

• White blood cells

• Plasma

What is the main job of platelets?

• Transport oxygen

• Prevent blood loss through a wound

• Fight infections

• Carry nutrients