Flashcards in Immune System Deck (31):
Micro organisms that cause diseases in humans
Five types of pathogens
Fungi, bacteria, virus, prions, Protozoa
Six types of disease transmissions
Food borne, blood borne, airborne, vector, contact, sexual
Concerns over vaccinations
Causes disease, creates vaccine immune pathogens
What is the lymphatic system?
Cells, tissues, and organs that play a central role in the body's defenses against pathogens
What are functions of the lymphatic system?
Produce, maintain, distribute lymphocytes, maintain blood volume
Fluid that circulates in the lymphoid system; colorless fluid filled with WBC's
Site of fluid exchange between the circulatory and lymphatic systems
Where is the drainage of the lymph in the upper right side of the body?
Where is the drainage of the lymph in the left and lower sections of the body?
How are nodules different than nodes?
They are smaller
What are three organs of the lymphatic system
Lymph nodes, thymus, and spleen
What organ system would be affected without the lymph system?
Circulatory and immune system
Why do we have an immune system?
To attack invaders from the inside and outside
What cells are the basis for all immune cells
Pluripotent stem cells
Five parts of the first line of defense
Barriers, traps, elimination, unfavorable pH, and lysozyme enzyme
Three leukocyte a in the second line of defense
Neutrophils, macrophages, and natural killer cells
How do neutrophils destroy pathogens?
Swallow pathogen, display parts on outside, release histamine
Swallow cell, break apart, release parts
Bind to cell, injects perforin which expands and causes apoptosis
How does the inflammatory response help defend against infection?
Slows bacterial growth, stimulates phagocytosis, speeds up repair of tissues
Two types of lymphocytes in 3rd line of defense
B cells and T cells
Where do B cells mature?
Two types of B cells
Plasma cells and memory cells
Indirectly attack pathogens by producing antibodies that attach to antigens
Antibodies are analogous cellular...
Three types of T cells
Helper T cells, killer T cells, memory T cells
Recurve antibodies from someone else or a serum
Makes own antibodies
What is an auto immune disorder?
Immune system attacks its own molecules and cells