Clinical Immunology and Serology Exam 1 Questions and Answers 100% Solved
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Course
Clinical Immunology
Institution
Clinical Immunology
Clinical Immunology and Serology Exam
1 Questions and Answers 100% Solved
Definition of immunity - resistance to disease
Causes of immune deficiency - AIDS, newborns, elderly, leukemia,
lymphoma, chemotherapy, radiation therapy
nonspecific immunity (natural, innate) - the first line of defense...
epithelial barrier- ciliated epithelial cells - ✔✔cilia that wave upward
toward the pharynx. Particles that pass nasal hair are trapped in the mucus
which is moved up the pharynx and are swallowed, coughed, or spit out
external defense of nonspecific immunity- tearing - ✔✔flushes out the
eyes washing away surface contamination
external defense of nonspecific immunity- urine flow - ✔✔flushes
organisms away from the urethral meatus (prevents colonization and
bladder infections)
external defense of nonspecific immunity- stomach acid - ✔✔low pH
eliminates microbes
external defense of nonspecific immunity- indigenous microbiota of
mucosal surfaces - ✔✔compete for space and nutrients so many
pathogens are unable to thrive
inflammation definition - ✔✔body's reaction to tissue injury
classic signs of inflammation - ✔✔dolor (pain), calor (heat), rubor
(redness), and tumor (swelling)
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