http://www.ck12.org Chapter 1. Human Biology
The blood also carries hormones, which are chemical messengers, through your body.
FIGURE 1.38
The cardiovascular system moves nutri-
ents and other substances throughout the
body.Vocabulary
- cardiovascular system: Organs involved in circulating blood and lymph through the body, including the
heart, blood vessels, and the blood.
Summary
- The cardiovascular system is made up of the heart, the blood vessels, and the blood.
- The cardiovascular system moves nutrients, hormones, gases, and wastes to and from your cells.
Practice
Use the resource below to answer the questions that follow.