Second-degree burns involve the entire depth of the epidermis and a portion of the dermis.
Answer the following statement true (T) or false (F)
True
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Defense of the body against a particular pathogen is provided by
A) innate immunity. B) adaptive immunity. C) immunological surveillance. D) skin defenses. E) fever.
Each of the following paracrines may cause vasodilation EXCEPT
A) K+. B) CO2. C) Ca2+. D) nitric oxide. E) H+ ions from metabolic acids.
The gastric phase of gastric secretion
A. is triggered by taste, sight, thought, or smell of food. B. decreases the release of gastrin in the stomach. C. is mediated by impulses on sympathetic nerves. D. leads to the greatest volume of gastric secretion. E. leads to the least volume of gastric secretion.
The T cells that limit the degree of immune system activation from a single stimulus are __________.
a. suppressor T cells b. memory Tc cells c. cytotoxic T cells d. CD4 T cells