Areas of lymphoid tissue specifically found in the gastrointestinal tract are termed:
GALT
Lacteals
Kupffer cells
MALT
The Correct Answer is A
A. GALT stands for Gut-Associated Lymphoid Tissue, which refers to lymphoid tissue found in the gastrointestinal tract, including structures like Peyer's patches and the appendix, that play a role in immune defense.
B. Lacteals are specialized lymphatic capillaries found in the small intestine, responsible for absorbing digested fats, not lymphoid tissue.
C. Kupffer cells are macrophages located in the liver, responsible for filtering the blood, not in the gastrointestinal tract.
D. MALT stands for Mucosa-Associated Lymphoid Tissue, which refers to lymphoid tissue found in mucosal membranes throughout the body, including the gastrointestinal tract, but GALT is the specific term for lymphoid tissue in the gut.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Attenuation is the process of weakening or reducing the virulence (ability to cause disease) of a pathogen, making it less harmful. This weakened form can then be used in the preparation of vaccines, allowing the immune system to respond without causing disease.
B. Antitoxin refers to antibodies or other substances that neutralize toxins, not the process of reducing a pathogen's virulence.
C. Complement refers to a group of proteins that play a role in the immune response, enhancing the ability to clear pathogens, but it is not related to the process of preparing vaccines.
D. Vaccine is a preparation used to stimulate the immune system, but the process of preparing the vaccine (such as attenuation) is different from the vaccine itself.
Correct Answer is ["A","D"]
Explanation
A. Transfer through the placenta or breast milk is a form of naturally acquired passive immunity, where antibodies are passed from mother to child without the child's immune system having to produce them.
B. Inflammation is part of the innate immune response and not related to passive immunity.
C. Vaccination with an antigen involves stimulating the body to produce its own immune response, which is active immunity, not passive.
D. Administration of antiserum provides artificially acquired passive immunity, where pre-formed antibodies are given to an individual for immediate protection.
E. Tears and saliva are part of the innate immune system (first line of defense) and are not considered forms of passive immunity.
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