Flashcards in X Deck (23):
What is humoral immunity?
B lymphocytes are part of what immune system?
Memory cells in B lymphocytes do what?
Remember antigen, speed up secondary response
Plasma cells are in what type of lymphocyte?
What do plasma cells do?
Make and release antibodies which induce antigen phagocytosis.
What are the types of antibodies?
IgG IgA IgM IgD IgE
What is active immunity?
Antibodies are produced during an immune response
What is passive immunity?
Antibodies produced by one organism are transferred to another.
T lymphocytes are part of what immune system?
Cell mediated immunity
What do cytotoxic T cells do?
Destroy cells directly
What do helper T cells do?
Activate B and T cells to decrease anti-antigen activity.
Memory cells are part of what two types of lymphocytes?
B and T
The nonspecific immune response contains what?
Skin, passages lined with cilia, macrophages, inflammatory response, and interferons.
What are interferons?
Proteins that help prevent the spread of viruses
Where is the thoracic duct?
Upper chest and neck.
Where do lymph vessels meet and what do they do once they meet?
Thoracic duct, drain into veins
What is lymph?
Excess interstitial fluid
Vessels carry what in the second part of the lymphatic system?
In the lymphatic system, what do capillaries do and where does it occur?
Collect fats by absorbing chylomicrons in the small intestine.
In the lymphatic system, capillaries in the small intestine are also called?
What are lymph nodes and what do they do?
Swellings along lymphatic vessels that contain phagocytes that remove foreign particles from lymph.
The phagocytic cells in lymph nodes are called?