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Second line of defense Correct Ans-Phagocytes, inflammation, fever, and antimicrobial
substances that are activated when a microbe penetrates the first line of defense
Leukocytes Correct Ans-White blood cells, including granulocytes and agranulocytes, that
are involved in immune responses
Lymphatic system Correct Ans-A network of lymph vessels, lymph nodes, and lymphoid
tissue that returns interstitial fluid to blood plasma
Phagocytosis Correct Ans-The ingestion of microorganisms or particulate matter by a cell
Phagocytes Correct Ans-White blood cells or their derivatives that perform phagocytosis
Chemotaxis Correct Ans-The process by which phagocytes are attracted to microorganisms
Opsonization Correct Ans-The coating of a microbe with serum proteins to facilitate
adherence to phagocytes
, BIOS 390: Exam 3 Textbook Questions and Answers
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Inflammation Correct Ans-The body's response to tissue damage, characterized by
redness, pain, heat, swelling, and sometimes loss of function
Fever Correct Ans-An abnormally high body temperature produced in response to a
bacterial or viral infection
Pathogenicity Correct Ans-The ability of a pathogen to produce a disease by overcoming
the defenses of the host
Virulence Correct Ans-The degree of pathogenicity
Portal of entry Correct Ans-The specific route by which a particular pathogen gains access
to the body
Mucous membranes Correct Ans-The moist linings of the conjunctiva, respiratory,
gastrointestinal, and genitourinary tracts
Intact skin Correct Ans-The outer layer of the body that acts as a barrier to microorganisms