Exploring the Circulatory System Basics

What are the three main components of the circulatory system?

What role does the heart play in the circulatory system?

What is the primary function of red blood cells?

What is the main function of platelets?

Which component of blood is primarily responsible for fighting infections?

Which type of blood vessel carries oxygen-rich blood away from the heart?

Which blood vessels are involved in the exchange of nutrients and waste at the cellular level?

How does the blood return to the heart after circulating through the body?

What process describes the movement of nutrients from high to low concentration in the small intestines?

What happens to the nutrients after they are absorbed in the small intestines?