Match List-I with List-II
| List-I Hormones | List-II Functions |
|---|---|
| (A) LH | (I) Necessary for maintenance of pregnancy |
| (B) GnRH | (II) Stronger uterine contractions |
| (C) Oxytocin | (III) Stimulate secretion of gonadotropins |
| (D) Relaxin | (IV) Ovulation |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
(A) LH — this matches (IV) Ovulation. In the middle of the menstrual cycle, the level of LH rises to a peak (the LH surge). This surge makes the Graafian follicle rupture and release the ovum.
(B) GnRH — this matches (III) Stimulate secretion of gonadotropins. GnRH (gonadotropin releasing hormone) comes from the hypothalamus. It acts on the anterior pituitary, which then releases the gonadotropins LH and FSH.
(C) Oxytocin — this matches (II) Stronger uterine contractions. At the end of pregnancy, the foetal ejection reflex makes the pituitary release oxytocin. Oxytocin makes the uterine muscles contract more strongly, which leads to parturition (childbirth).
(D) Relaxin — this matches (I) Necessary for maintenance of pregnancy. Relaxin is secreted by the ovary in the later phase of pregnancy. It is one of the hormones produced in women only during pregnancy, which support the foetus and maintain the pregnancy.