A blood type (or group) is a classification of blood based on the presence or absence of antigens protein that evokes an immune response on the surface of red blood cells. These antigens are inheritied by both parents. There is a total of 35 different blood groups in humans. The most important of these types is the ABO blood group (or blood type) and the Rho type (most importantly the "D" antigen type).

Blood types are inherited and consist of red blood cells, white blood cells, platelets, and plasma.

In this lesson, we will learn more about blood types.

cartoon of vials of blood each labeled A, O, B, or AB

Lesson Objectives

Following successful completion of this lesson, students will be able to...

  • Identify the four main ABO Blood groups and how they are determined.
  • Apply blood group types to blood transfusion compatibility.

Enduring Understandings

  • The cardiovascular system is composed of the heart, blood vessels, and blood.
  • The heart is the organ that pumps blood through blood vessels.
  • The cardiovascular system transports gases, nutrients, hormones, and wastes throughout the body.

The above objectives correspond with the Alabama Course of Study: Anatomy and Physiology standards: 7

Next Page