Menstrual Hygiene & Health Management — NEET Biology
📚 Practice ConceptMaintenance of hygiene and sanitation during menstruation is very important. Take bath and clean yourself regularly. Use sanitary napkins or clean homemade pads. Change sanitary napkins or homemade pads after every 4-5 hrs as per the requirement. Dispose of the used sanitary napkins properly wrapping it with a used paper. Do not throw the used napkins in the drainpipe of toilets or in the open area. After handling the napkin wash hands with soap.
Which of the following statements are correct regarding hormonal regulation in human reproduction? S1: Progesterone, secreted primarily by the corpus luteum, is essential for preparing and maintaining the endometrium for implantation. S2: During pregnancy, the placenta secretes hCG, which inhibits the growth of the corpus luteum to prevent multiple pregnancies. S3: Estrogen levels remain consistently low throughout the follicular phase to allow for primary follicle development. S4: The LH surge at mid-cycle is directly responsible for stimulating the production of large amounts of progesterone by the Graafian follicle. S5: Oxytocin is responsible for the strong uterine contractions that lead to menstruation if fertilisation does not occur.
View solution & NCERT explanation
Correct answer: D — S1 only
This question focuses on the roles of various hormones in regulating human reproduction, particularly during the menstrual cycle and pregnancy. S1 is correct: Progesterone, mainly from the corpus luteum, is crucial for maintaining the endometrium, which is necessary for implantation and pregnancy. (NCERT, Page 35, 'The corpus luteum secretes large amounts of progesterone which is essential for maintenance of the endometrium. Such an endometrium is necessary for implantation of the fertilised ovum and other events of pregnancy.') S2 is NOT correct: During pregnancy, hCG is produced by the placenta and acts to maintain the corpus luteum, which continues to secrete progesterone, thereby supporting the pregnancy. It does not inhibit the corpus luteum. (NCERT, Page 37, 'Placenta also acts as an endocrine tissue and produces several hormones like human chorionic gonadotropin (hCG)... Increased production of these hormones is essential for supporting the fetal growth... and maintenance of pregnancy.') S3 is NOT correct: Estrogen levels gradually increase during the follicular phase, stimulating follicular development and regeneration of the endometrium. (NCERT, Page 34, Figure 2.9 shows rising estrogen levels during follicular phase; Page 35, 'secretion of estrogens by the growing follicles.') S4 is NOT correct: The LH surge induces ovulation. After ovulation, the ruptured Graafian follicle transforms into the corpus luteum, which then secretes progesterone. (NCERT, Page 35, 'LH surge induces rupture of Graafian follicle and thereby the release of ovum (ovulation). The ovulation... is followed by the luteal phase during which... corpus luteum... secretes large amounts of progesterone.') S5 is NOT correct: Menstruation occurs due to the degeneration of the corpus luteum and the subsequent drop in progesterone levels, leading to the disintegration of the endometrium. Oxytocin is involved in uterine contractions during parturition. (NCERT, Page 35, 'In the absence of fertilisation, the corpus luteum degenerates. This causes disintegration of the endometrium leading to menstruation.'; Page 38, 'Oxytocin acts on the uterine muscle and causes stronger uterine contractions... leading to expulsion of the baby.') Therefore, only statement S1 is correct.
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Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.