Protective mechanisms such as external barriers and bodily secretions are components of ____________ immunity.
The key cells involved in developing adaptive or acquired immunity are _______________.
C. T & B lymphocytes
The immunologic principle involved with the ability of a vaccine to prevent disease is _______________.
The immunoglobulin responsible for defense against infection during the first few weeks of life is ________.
The first immunoglobulin to respond to an infection is ________.
The immunoglobulin involved in allergic reactions is ________.
The migration of neutrophils, or polymorphonuclear leukocytes (PMNs), to the site of an invading microbe is referred to as _______________.
A. gradient migration
Heparin, histamine and serotonin, which intensify inflammation are released by _______________.
D. dendritic cells
Lymphocytes that are effectors of cell-mediated immunity are called __________.
T-cells mature in which of the following organs?
C. Thymus gland
D. Bone marrow
Immune complex reactions are categorized into which type of immune hypersensitivity?
A. Type I
B. Type II
C. Type III
D. Type IV
The composition of undisturbed plaque changes from gram-positive coccoid and filamentous bacteria to gram-negative rods and spirochetes.
The bacterial pathogens most often associated with destructive periodontitis make up the __________ complex.
The primary pro-inflammatory cytokine is _______________.
A. Prostaglandin E2
B. Tumor Necrosis Factor
The T-cell predominates in the ____________ stage of periodontal disease.