Introduction

The body has three lines of defense against pathogens. In this lesson, we will learn the barriers and responses to pathogens on each level.

 

Lesson Objectives

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

  • Interpret a concept map model of the body’s 1st, 2nd, and 3rd lines of defense against pathogens.
  • Describe the purpose and process of the inflammatory response.

Enduring Understandings

  • The immune/lymphatic system is composed of lymphatic organs and white blood cells that work together to fight pathogenic organisms.
  • Disorders and diseases of the immune system are a result of disruption of the homeostatic mechanisms within the immune system.

The above objectives correspond with the Alabama Course of Study: Anatomy and Physiology standards: 12 and 12a.

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