ATI RN
Immune System Disorders Quizlet Questions
Question 1 of 5
Which of the following is not considered a virulence factor?
Correct Answer: D
Rationale: The correct answer is D: Peptidoglycan. Peptidoglycan is a structural component of bacterial cell walls and does not directly contribute to the pathogenicity or virulence of the bacterium. Flagella aid in motility and colonization, effector proteins manipulate host cells, and toxins damage host tissues, all of which are virulence factors. Peptidoglycan is essential for maintaining cell shape and integrity but does not directly enhance the ability of the bacteria to cause disease.
Question 2 of 5
The site where B cells mature is
Correct Answer: C
Rationale: The correct answer is C: Bone marrow. B cells undergo maturation in the bone marrow, where they develop from hematopoietic stem cells. This is where they acquire their antigen receptors and differentiate into mature B cells. Lymph nodes (A) are primarily responsible for filtering lymph and containing immune cells. The spleen (B) is involved in filtering blood and storing immune cells. The thymus (D) is where T cells mature, not B cells. Therefore, the correct site for B cell maturation is the bone marrow.
Question 3 of 5
The inflammatory response produced
Correct Answer: D
Rationale: The correct answer is D. The inflammatory response can be triggered by microbial-infected cells releasing cytokines, internal tissue injury leading to the release of inflammatory mediators, and the migration of erythrocytes from the spleen in response to inflammation. Therefore, all of the choices - A, B, and C - are correct in contributing to the inflammatory response. Each option plays a role in the complex cascade of events that lead to inflammation.
Question 4 of 5
Peripheral nervous system (PNS)
Correct Answer: D
Rationale: Step-by-step rationale: 1. The Peripheral Nervous System (PNS) includes nerves and ganglia, making choice B correct. 2. PNS is located outside the Central Nervous System (CNS), supporting choice A. 3. Since both A and B are accurate statements, the correct answer is D. Summary: - Choice A is correct because the PNS is located outside the CNS. - Choice B is correct as the PNS includes nerves and ganglia. - Choice C is incorrect as it refers to the CNS (Brain & Spinal cord).
Question 5 of 5
What is the primary function of white blood cells?
Correct Answer: C
Rationale: The primary function of white blood cells is to protect the body from foreign substances such as bacteria, viruses, and other pathogens. They do this by identifying and attacking these invaders to prevent infections and maintain overall health. White blood cells are a crucial part of the immune system and play a key role in defending the body against diseases. Clotting and sealing damaged blood vessels (choice A) is primarily done by platelets, not white blood cells. Transporting oxygen and carbon dioxide (choice B) is the function of red blood cells, not white blood cells. Producing hormones (choice D) is mainly performed by endocrine glands, not white blood cells.