Which of the following hormones is more directly associated with the maintenance of pregnancy?
A
Progesterone
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B
Testosterone
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C
Cortisone
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D
Vasopressin
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Solution
The correct option is A Progesterone Progesterone belongs to a group of steroid hormones called progestogens. It is mainly secreted by the corpus luteum in the ovary during the second half of the menstrual cycle. It plays important roles in the menstrual cycle and in maintaining the early stages of pregnancy. Progesterone has key effects via non-genomic signalling on human sperm as they migrate through the female tract before fertilization occurs, though the receptor(s) as yet remain unidentified. Progesterone is sometimes called the "hormone of pregnancy", and it has many roles relating to the development of the fetus.