Lymphatic Flashcards
Nonspecific immunity
External barriers, phagocytosis, anti microbial protiens, natural killer cells, inflammation, fever
External barriers
Skin is the first line of defense
Mucus, tears, saliva contain lysosomes (weaken the cell walls of bacteria)
Phagocytosis
Phagocytes ingest and destroy microorganisms and small particles
Macrophages- large eater
Neutrophils
Natural killer cells
Continuously roam body seeking out diseased cells (foreign cells, cancer cells, viruses, bacteria)
Inflammation
Swelling
Redness
Heat
Pain
Fever
Pyrexia
Abnormal elevation of body temperature
Creates pyrogen beneficial
Specific immunity
Cellular immunity- destroys foreign cells and infected host cells
Humoral immunity- focuses on pathogens outside the host cell marks them for later
Natural active immunity
Body create T cells after being exposed to a virus once
Artificial immunity
Makes T cells as a result of a vaccination
Natural passive immunity
When a baby gets T cells through placenta or breastfeeding
Artificial passive immunity
Obtaining a serum from someone who produced antibodies
Cellular immunity
Killer T cells- carry out attack
Helper T cells- supportive role
Memory T cells- remember pathogens
Cancer spreads through
Lymphatic system
Often travel to lymph nodes and multiply, and continue to spread to more lymph nodes.
Immunoglobulin
Antibodies
Resemble chains of protein Y or T
Attach to antigens (any molecule that triggers an immune response)
IgA
Mucus membrane in intestine, respiratory tract, urinary tract
Saliva tears and breastmilk
