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Lymphatics and Body

A&P

QuestionAnswer
What happens at the proximal end of capillary dynamics? fluid is pushed out of capillary by hydrostatic pressure
What happens at the distal end of capillary dynamics? fluid is pulled back into capillary by osmotic pressure
What do the tonsils filter? microorganisms
What does the spleen filter? blood
What is the role of lymph nodes? filters foreign substances
What are lymphatic vessels? they are blind ended and have no opening
What is the gut associated lymphatic tissue (GALT)? intestine
What is the first line of defense? secretion of skin and mucous membranes
What is the second line of defense? phagocytic cells, antimicrobial proteins, the inflammatory response, fever
What does the specific defense mechanism do? target foreign antigens
What is the third line of defense? lymphocytes, antibodies, marophages
What are T lymphocytes? cell mediated immunity, cells infected by virus and tumors
What are B lymphocytes? antibodies, free floating bacteria and virus
What is immunocompetency? target one and only one foreign antigen
What are memory B cells? they react quickly to make clones (future) and produce antibodies (secondary immune)
What is the primary immune response? slow, not very powerful, not long lasting
What is the secondary immune response? memory B cells, fast, powerful, long lasting
How do B lymphocytes cells work? they bind to foreign antigen, become clones and divides, becomes plasma cell and produces antibodies
What active naturally acquired immunity? active infection; contact with pathogen
What is passive naturally acquired immunity? passive antibodies pass from mother to fetus
What is active artificially acquired immunity? active vaccine
What is passive artificially acquired immunity? passive infection of immune serum
What is a live virus vaccine? long lasting protection but slim chance of causing disease
What is a killed vaccine? adjuvont (oil based), not as protective or long lasting, very safe, may cause irritation at injection site
What do helper T cells do? activate cytotoxic T cells, stimulate B cell to make antibodies, turn on inflammation/fever
What is hypersensitivity? immune system response to a perceived threat
What is immediate hypersensitivity? B cell related, occurs quickly, inhalents or food allergies
What is delayed hypersensitivity? T cell related, slow, poison ivy
What is auto immune? the immune system attacks normal tissue, not directly hereditary
Created by: 1969391956599541
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