Chapter 19, Problem 6CYR

Summary Introduction

To review:

The blank space in the statement “Erythrocytes are derived from stem cells called _______, circulate in the blood for approximately ________ days, and are destroyed by an organ called the _______.”

Introduction:

Erythrocytes are formed elements of the blood, whose primary function is to carry oxygen to different parts of the body. It contains the protein hemoglobin that binds to the oxygen for delivery to various tissues. They donot have cellular machinery, hence have a small lifespan, and therefore, should be continuously replenished in the body.