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. All of the answers are correct — Complement proteins are part of the immune system and contribute to defense in multiple ways:
B. They attract phagocytes to the site of infection through chemotaxis, enhancing the immune response.
C. They promote inflammation by increasing vascular permeability and attracting immune cells.
D. They can destroy cells by forming the membrane attack complex (MAC), which creates pores in the membranes of pathogens, leading to cell lysis.
Correct Answer is C
Explanation
A. Vaccines are preparations that stimulate the immune system to produce an immune response, but they are not classified as killer, helper, regulator, or memory cells.
B. Antibodies are proteins produced by B cells that help neutralize pathogens, but they are not classified as killer, helper, regulator, or memory cells.
C. Granulocytes are a type of white blood cell that includes neutrophils, eosinophils, and basophils, involved in the immune response. However, the correct classification of cells as "killer, helper, regulator, and memory" specifically refers to T cells (not granulocytes). T cells are the cells responsible for these roles:
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