Which of the following substances triggers a hypersensitivity reaction?
Pathogen
Allergen
Immunogen
Fibrinogen
The Correct Answer is B
a. Pathogen: A pathogen is a disease-causing organism like bacteria, virus, or parasite. It can trigger an immune response, but not necessarily a hypersensitivity reaction.
b. Allergen: An allergen is a foreign substance (like pollen, dust mites, or food) that can trigger an immune response in an already sensitized individual. This response can lead to allergy symptoms like hay fever or anaphylaxis
c. Immunogen: An immunogen is any substance that can trigger an immune response, but not necessarily a hypersensitivity reaction. It can be a pathogen, allergen, or other foreign substance.
d. Fibrinogen: Fibrinogen is a blood protein involved in blood clotting, not allergic reactions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a. Formation of polar bodies: Formation of polar bodies occurs only in oogenesis, not in spermatogenesis.
b. Meiosis: Correct. Both oogenesis and spermatogenesis involve meiosis, the process of cell division that reduces the chromosome number by half.
c. Development of a Graafian follicle: This is specific to oogenesis. The Graafian follicle is the mature ovarian follicle.
d. Fertilization: Fertilization is the union of sperm and egg, not a process that occurs during the development of either gamete.
Correct Answer is B
Explanation
a. Vas deferens: This is a tube that transports sperm from the epididymis to the ejaculatory ducts but does not form the bulk of the testis.
b. Seminiferous tubules: These tubules are where sperm production (spermatogenesis) occurs and constitute the majority of the testicular mass.
c. Seminal vesicles: These are glands that produce seminal fluid and are not part of the testis.
d. Corpus cavernosum: This is erectile tissue found in the penis, not in the testis.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.