1-1
Section I. ANATOMY AND PHYSIOLOGY
1-1. INTRODUCTION
The circulatory system has two major fluid transportation systems, the cardiovascular (CV) 00system and the lymphatic system.
a. Cardiovascular System. This system, which contains the heart and blood vessels, is a closed system, transporting blood to all parts of the body. Blood flowing through the circuit formed by the heart and blood vessels (see Figure 1-1) brings oxygen, food, and other chemical elements to tissue cells and removes carbon dioxide and other waste products resulting from cell activity.
b. Lymphatic System. This system, which provides drainage for tissue fluid, is an auxiliary part of the circulatory system, returning an important amount of tissue fluid to the blood stream through its own system of lymphatic vessels.
