Blood: this life-saving fluid

Abstract

The key function of blood is to deliver oxygen and nutrients to, and remove waste from, the cells; the blood also has a number of other functions to perform. This article in the anatomy and physiology (A&P) series offers an overview of this life-saving fluid. It emphasises the need for those who provide care and support to develop an understating of blood and its various functions in illness and health. Understanding the function of blood can help offer people care that is safe, effective and informed. The article considers the various components of blood. The various functions of blood, including its role in transportation, regulation and protection, are described. Understanding these issues can help in ensuring care is safe and appropriate. The article offers a glossary of terms that can help in understanding some of the terms used. A short quiz is provided so as to reinforce learning.