Our bodies are the perfect breeding ground for pathogenic invaders. Some of these microorganisms can make people sick, some critically ill, and some are so virulent they can even kill their host. The human body responds with the organs and specialized cells of the immune system to defend itself and try to return to a state of good health. This second program in the series on the immune system will describe this defense process against the most common pathogens: bacteria and viruses.
The learner should be able to:
Discuss the major cells, chemicals and proteins that work together to fight off invading bacteria and viruses
Explain in detail the process of the human body's immune response to bacteria
Explain in detail the process of the human body's immune response to viruses
Overview: The human immune system is perhaps the most complicated system in our bidies. It is composed of organs and chemicals that interact with one another to perform the miracle of defending us against pathogenic invaders. This program, the first of three, will explore the components of the immune system and describe how they work together to protect us.
Objectives: The learner should be able to:
Discuss the main organs that comprise the human immune system - the thymus, the bone marrow and the cells it produces, the lymph system and the spleen
Explain the role and importance of leukocytes.
Identify and discuss the two main functional divisions of the immune system - the innate system and the adaptive system
Describe the innate immune system and its main sentinels and warriors, including macrophages, neutrophils, NK cells and others
Describe the purposes and functions of the adaptive immune system