Anatomy and Physiology

Question 1

Fill in the Blank:
The immune system protects the body from disease and potentially harmful foreign invaders called ___.

Answer 1

Pathogens

Question 2

What are the five types of pathogens?

Answer 2

Bacteria, viruses, fungi, protozoa, and helminths (worms).
The process through which pathogens cause disease is called pathogenesis.

Question 3

Fill in the Blank:
Bacteria, viruses, fungi are often referred to as ___.

Answer 3

Microorganisms

Question 4

Fill in the Blank:
Protozoa, and helminths (worms) are also known as ___.

Answer 4

Parasites

Question 5

What two ways does the immune system defend against pathogens?

Answer 5

The immune system prevents foreign organisms from entering the body and destroys harmful organisms that do enter the body. It detects pathogens and differentiates between potentially harmful agents and the body’s own healthy tissues.

Question 6

Define:
Autoimmune Disease

Answer 6

An autoimmune disease is when the immune system cannot differentiate harmful foreign invaders and its own cells. It creates an immune response to itself.