Question

Select the correct answer. hCG is secreted in the human female immediately after conception. How would a gynecologist use this information? A. to detect pregnancy B. to detect abnormalities in the embryo C. to facilitate embryo implantation

Answer 1

A gynecologist uses the hormone hCG, which is secreted by the blastocyst after implantation, to detect pregnancy. It is detected through blood or urine pregnancy tests as it maintains the pregnancy by preserving the corpus luteum and maintaining hormone levels.

Step-by-step explanation:

Human chorionic gonadotropin (hCG) is secreted by the trophoblast cells of the blastocyst immediately after implantation in the endometrium and is crucial for maintaining pregnancy. A gynecologist would use the presence of hCG to detect pregnancy, as this hormone is the basis for both blood tests and at-home urine pregnancy tests. While hCG's role extends to supporting the corpus luteum and maintaining progesterone and estrogen levels to prevent menses and create a favorable environment for the embryo's development, the detection of hCG in a woman's urine or blood is specifically indicative of pregnancy, thereby giving a positive result in a pregnancy test.

Answer 2

The correct answer is option C, that is, to facilitate embryo implantation.

hCG or Human chorionic gonadotropin refers to a protein hormone that begins to generate in huge quantities at the time of initial pregnancy. It is biologically identical to luteinizing hormone. The main function of hCG is to maintain the function of corpus luteum so that the corpus luteum does not stop producing progesterone and estrogen.

The hCG refers to a placental hormone, which is at the start gets discharged by the cells from the implanting conceptus at the time of the second week, encouraging the ovarian corpus luteum that in turn encourages the endometrial lining and thus helps in sustaining a pregnancy.