Cardiovascular System Quiz

What is the primary function of the cardiovascular system in animals?

• Digestion of food

• Circulation of blood

• Production of hormones

• Absorption of nutrients

Which organ is central to the cardiovascular system in animals?

• Liver

• Kidney

• Heart

• Lungs

What is the primary function of the cardiovascular system?

• To digest food

• To pump blood from the heart to the lungs to get oxygen

• To produce hormones

• To store energy

What role do veins play in the cardiovascular system?

• They carry oxygen-rich blood to the heart

• They carry oxygen-poor blood back to the heart

• They digest nutrients

• They produce red blood cells

Why is the cardiovascular system critical for the body?

• It helps in digestion

• It is essential for healthy organs, muscles, and tissues

• It stores fat

• It produces vitamins

Which organ is the only circulatory system organ?

• Lungs

• Heart

• Liver

• Kidneys

What are the components of blood?

• Red and white blood cells, plasma, platelets

• Red blood cells, plasma, neurons

• White blood cells, plasma, cartilage

• Red blood cells, neurons, platelets

Which of the following is not a type of blood vessel?

• Arteries

• Veins

• Capillaries

• Alveoli

How does the cardiovascular system function?

• By using blood vessels such as arteries, veins, and capillaries to circulate blood.

• By using the digestive system to process nutrients.

• By using the nervous system to send signals.

• By using the skeletal system to support movement.

What is the main function of the heart in the human body?

• To pump blood throughout the body

• To digest food

• To filter waste from the blood

• To produce hormones