Immune System Basics
What does the immune system protect the body from?
Germs/microbes
What is the body’s first line of defense?
Skin
Where are white blood cells made?
Bone marrow
What is it called when the immune system is too active?
Overactive
Name one common viral infection.
Cold or flu
Name two main jobs of the immune system.
Fight germs, recognize harmful substances
What traps particles in the lungs?
Mucus
Which organ filters blood and removes old red blood cells?
Spleen
Give one example of an allergic disease.
Hay fever/asthma/eczema
What type of medicine fights bacteria?
Antibiotics
What are proteins made by B cells to fight antigens?
Antibodies
Which digestive organ kills many microbes with acid?
Stomach
Which gland produces T lymphocytes?
Thymus
What do we call diseases where the immune system attacks its own body?
Autoimmune diseases
What disease weakens the immune system by attacking T-cells?
HIV(human immunodeficiency virus) /AIDS (Acquired immunodeficiency syndrome)
What are the two subsystems of the immune system?
Innate and Adaptive
What immune response raises body temperature to fight infection?
Fever
Name the two main lymphocytes.
B cells & T cells
Name one autoimmune disease.
Type 1 diabetes / lupus / rheumatoid arthritis
Give one way infectious diseases can spread.
Airborne, sexual contact, blood, insects, food, water
What do memory cells allow the immune system to do?
Recognize and respond faster to microbes
What do saliva and tears contain to fight bacteria?
Anti-bacterial enzymes
What is the network of tubes that carries lymph called?
Lymphatic system
What is it called when the immune system does not work properly and leaves you vulnerable to infections?
Immunodeficiency
Why doesn’t one cold give you immunity against all colds?
There are many different viruses/strains