Part 4

Exploring the Inner Workings of the Body

IN THIS PART …

Look at the anatomical structures of the cardiovascular, respiratory, digestive, urinary, and lymphatic systems.

Learn how the blood is moved around and how the body gets things into and out of it.

Get familiar with the mechanics of breathing and gas exchange.

Make sense of the mechanical and chemical breakdown of food.

Understand the importance of the kidneys: urine formation and blood pressure control.

Investigate immunity and lymphatic flow.