The
The Correct Answer is {"dropdown-group-1":"B"}
A. Lymph nodes: Lymph nodes do undergo some changes with age but not as dramatically as the thymus.
B. Thymus: The thymus undergoes involution after puberty, shrinking in size and being replaced largely by fat, which significantly reduces T-cell production.
C. Spleen: While some function may decline with age, the spleen does not undergo the same marked involution as the thymus.
D. Pharyngeal tonsils: The tonsils may atrophy slightly with age, but the effect is less pronounced than with the thymus.
E. Appendix: The appendix may reduce in lymphoid tissue over time but does not exhibit the same profound involution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"A"}
Explanation
A. Insulin; glucagon and epinephrine: Insulin promotes glycogenesis (storage of glucose as glycogen), while glucagon and epinephrine stimulate glycogenolysis (breakdown of glycogen to glucose).
B. Insulin; aldosterone: Aldosterone regulates sodium and potassium; not directly involved in glucose metabolism.
C. Growth hormone; glucagon and epinephrine: GH has minimal effect on glycogenesis. The second part is correct, but the first is not.
D. Growth hormone; cortisol: Cortisol can promote gluconeogenesis, not specifically glycogenolysis. GH does not drive glycogenesis.
E. Growth hormone; insulin: Insulin does not stimulate glycogenolysis. This pairing is incorrect.
Correct Answer is B
Explanation
A. Nasal vestibule: The nasal vestibule is the anterior part of the nasal cavity just inside the nostrils, lined with skin and hair.
B. Nasal cavity: The nasal cavity is a large air-filled space behind the nose, extending from the nostrils to the choanae.
C. Nasal concha: The nasal conchae are curved bony projections (superior, middle, and inferior) inside the nasal cavity that increase the surface area for warming and humidifying air.
D. Sphenoid sinus: The sphenoid sinus is a hollow space within the sphenoid bone, located posterior to the nasal cavity and inferior to the sella turcica.
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