wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which one of the following is the correct matching of events occurring during the menstrual cycle?


A

Secretory phase – Development of corpus luteum and increased secretion of progesterone

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B

Proliferative phase – Rapid regeneration of myometrium and maturation of Graafian follicle

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

Ovulation – LH, and FSH attain peak levels and a sharp fall in the secretion of progesterone

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

Menstruation – Breakdown of myometrium and ovum not fertilized

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A

Secretory phase – Development of corpus luteum and increased secretion of progesterone


The correct option is A.

Explanation of the correct answer:

  1. The secretory phase is the last phase of the menstrual cycle.
  2. Due to secretion of Luteinising hormone (LH) from the pituitary, it is also known luteal phase.
  3. LH leads to the development of the Corpus Luteum which secrets progesterone and leads to an increased level of progesterone.


Explanation of the incorrect answers:

Option B:

  1. In the Proliferative phase, due to the secretion of Follicle-stimulating hormone (FSH) from the pituitary gland, the Ovarian follicle starts to secret estrogen.
  2. Due to the coiling of long blood vessels, the endometrial wall becomes thick.

Option C:

  1. In the Ovulation phase, Luteinising hormone and Follicle-stimulating hormone do attain peak levels suddenly but this does not lead to a reduction in progesterone level.
  2. Rather it leads to rupturing griffin follicle to release an ovum.

Option D:

  1. The menstruation or Bleeding phase lasts for 3-5 days.
  2. In the menstruation phase, the Secretion of LH decreases, leading to decreased levels of estrogen and progesterone.
  3. Also, the endometrial wall breaks down when fertilization doesn't occur.

Final answer:

Secretory phase – Development of corpus luteum and increased secretion of progesterone is the correct matching of events occurring during the menstrual cycle


flag
Suggest Corrections
thumbs-up
8
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Gonads
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon