Immune Cells
What are lymphocytes?
Immune cells found in the blood and lymph tissue.
When the body mistakenly makes antibodies against itself treating health organs like a foreign invader what is it called?
Autoimmune Disease
Antigens are simply defined as....?
Foreign substances in the body
What do immunities do?
Protect the body against antigens.
What is the primary function of the lymphatic system?
To transport lymph, a fluid containing infection-fighting white blood cells, throughout the body.
What are the 2 major types of lymphocytes?
B Cells and T Cells
What test is most appropriate for confirming a diagnosis of celiac disease?
Antibody serology testing
What are antibodies also called?
Immunoglobulins
What is complement cascade?
A process in the blood that helps or compliments cells of the immune system to eliminate invading pathogens.
What is lymph?
A clear, colorless fluid that travels through the lymphatic system, carrying white blood cells and supporting immune system function.
What do Helper T cells stimulate?
B cells to make antibodies and help killer cells develop
Which test is most appropriate to confirm a diagnosis of mononucleosis?
Blood test to look for EBV antibodies and CBC
What does IgA do?
Prevents pathogens from entering the body.
What are the proteins known as the "messengers of the immune system"?
Cytokines.
What is the role of the thymus in the lymphatic system?
The thymus is where T cells mature and become able to defend against pathogens.
What do Killer T cells do?
Directly kill cells that have already been infected by a foreign invader
What approach should be taken to determine if someone has Chronic Fatigue Syndrome (CFS)?
Conduct a physical exam and blood tests to rule out other diseases and disorders.
What does IgE do?
Protects against bacterial and viral infections.
What does the Primary Immune Response do?
Occurs the first time a person is exposed to an antigen.
How do lymph nodes function in the lymphatic system?
Lymph nodes filter lymph to remove foreign particles such as bacteria and cancer cells.
True or False: Every human has a unique MHC like a fingerprint that is present on every cell in the body.
True
What diagnostic test would be most appropriate to determine if someone with abnormal growths on their neck are indicative of cancer?
Biopsy of the lump in the neck.
What does IgM do?
Binds to antigens on food, bacteria, or incompatible blood cells to neutralize them. It is also the first antibody made by the body to fight infection.
What does the Secondary Immune Response do?
Occurs the next time a person is exposed to an antigen.
What is the difference between lymph and blood?
Lymph is a clear fluid that doesn't contain red blood cells, while blood is a thicker fluid that carries red and white blood cells, platelets, and nutrients.