Which of the following is the hormone that helps make and mature T-lymphocytes?
Aldosterone
Cortisol
Thymosin
PTH
The Correct Answer is C
A. Aldosterone: Aldosterone regulates sodium and water balance, not immune function.
B. Cortisol: Cortisol is a stress hormone, not directly involved in T-cell maturation.
C. Thymosin: Thymosin, secreted by the thymus, stimulates the maturation of T-lymphocytes.
D. PTH: Parathyroid hormone (PTH) regulates calcium levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Is stimulated by darkness: Melatonin is stimulated by darkness; GH may have a circadian rhythm but is not specifically triggered by darkness.
B. Is stimulated by low levels of calcium: Low calcium levels stimulate parathyroid hormone (PTH), not GH.
C. Is secreted by the kidneys: GH is secreted by the anterior pituitary, not the kidneys.
D. Stimulates growth: GH promotes growth of bones, muscles, and tissues.
Correct Answer is A
Explanation
A. Reduces the chromosome number from 46 to 23: Meiosis produces gametes (egg and sperm) with half the genetic material.
B. Occurs in every cell in the body except the egg cell and sperm cell: That describes mitosis.
C. Occurs in the ovum but not the sperm: Meiosis occurs in both egg and sperm cells.
D. Increases the chromosome number from 23 to 46: That happens at fertilization, not during meiosis.
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