The DASH diet recommends increased intake of
A) sodium. B) fruits and vegetables.
C) foods high in sugar. D) saturated fats.
B
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This figure shows a skin reaction that developed as the result of the reaction of the individual to a ring that was not pure gold but was alloyed with nickel. The reaction appeared 2 days after wearing the ring. This rash is
a. pemphigus vulgaris. b. It is an IgE-mediated reaction c. It is a type III hypersensitivity. reaction. d. It is a type IV hypersensitivity reaction. e. A and D
The patient receives an injection into the muscle. This is an ________ muscular injection
Fill in the blank(s) with the appropriate word(s).
Histi/o means:?
A) hair B) nail C) tissue D) skin
How is the immune system able to recognize a limitless number of different antigens and epitopes?
If a lymphocyte encounters an antigen it does not recognize, it immediately switches receptors until it finds one that is a match. Each lymphocyte is coated with many different receptors, each of which recognizes a different epitope AND the immune system produces a wide variety of lymphocytes. While each lymphocyte carries receptors that recognize only one type of epitope, the immune system produces a wide variety of lymphocytes each of which carries unique receptors. A genetic "memory" of the pathogens your parents encountered (and their parents and so on) is passed on to each generation, increasing the number of possible responses over time. Each lymphocyte is coated with many different receptors, each of which recognizes a different epitope.