Immune Cells
These cells help fight infections by attacking germs.
What are white blood cells?
This is the body's first line of defense against germs.
What is the skin?
These proteins help the body recognize and fight specific germs.
What are antibodies?
Bacteria and viruses are examples of these.
What are pathogens?
This body system protects you from harmful pathogens.
What is the immune system?
These immune cells produce antibodies.
What are B cells?
This organ filters blood and helps support the immune system.
What is the spleen?
These immune cells produce antibodies.
What are B cells?
This type of germ can cause the common cold or flu.
What is a virus?
A harmful organism that can cause disease is called this.
What is a pathogen?
These cells can engulf and destroy pathogens.
What are macrophages?
This physical barrier covers most of your body and blocks germs.
What is the skin?
Antibodies attach to these structures on pathogens.
What are antigens?
This type of pathogen can be treated with antibiotics.
What are bacteria?
This is the body's ability to resist a particular disease.
What is immunity?
These cells remember pathogens after an infection.
What are memory cells?
Sneezing and coughing help remove these from the body.
What are pathogens?
This type of immunity uses antibodies and immune memory to fight specific pathogens.
What is adaptive immunity?
This disease is caused by a virus and commonly causes fever and cough.
What is influenza?
Vaccines help the immune system develop this.
What is immune memory?
These cells can directly kill infected or abnormal cells.
What are T cells?
This substance found in tears can help destroy bacteria.
What is lysozyme?
This type of immune response involves antibodies in the blood and other body fluids.
What is humoral immunity?
HIV primarily attacks these important immune cells.
What are CD4 T cells?
The immune system can recognize these as substances that are not normally part of the body.
What are foreign substances or antigens?