How can the menstrual cycle be described, Biology

Assignment Help:

Q. Including major events and hormonal changes how can the menstrual cycle be described?

One can imagine a cycle like an analog clock at which at 0 o'clock is the beginning and the end of the menstrual cycle and that 6 o'clock corresponds to the 14h day of the cycle and at 0 o'clock the menses and so the menstrual cycle begins and FSH blood level begins to rise.

Around 2 o'clock the maturing follicles under FSH action are already secreting estrogen and the endometrium is thickening and around 3 o'clock estrogen is intensely stimulating the rise of LH blood level. At 6 o'clock (the 14th day) LH is at its maximum concentration and FSH also at high levels to promote ovulation, LH then stimulates the formation of the corpus luteum and around 7 o'clock the corpus luteum is already secreting a great amount of progesterone and estrogen and the endometrium thickens even more, concomitant lowering of FSH and LH occurs with the increasing of the ovarian hormones.

Around 11 o'clock the reduced FSH and LH levels make the corpus luteum turn into the corpus albicans the production of progesterone and estrogen ceases and the endometrium regresses and At 0 o'clock again (28th day) the endometrium desquamates and a new menstrual cycle begins.


Related Discussions:- How can the menstrual cycle be described

Determine the structure of enzymes, Determine the Structure of Enzymes ...

Determine the Structure of Enzymes Since all enzymes are proteins, you will realize that knowledge of protein structure is clearly a pre-requisite to any understanding of enzym

What is hemocoel. explain in detail, What is Hemocoel? Explain in detail. ...

What is Hemocoel? Explain in detail. Principle body cavity in molluscs and arthropods, remnant of the blastocoel. It forms part of open circulatory system found in these animal

Bio geographical evidences, The main points which is based on the seminar...

The main points which is based on the seminar topic Bio geographical evidences

Calculate rate of heat removal per hour, Strawberries are quick frozen at a...

Strawberries are quick frozen at a rate of 6500 kg/h. The fruit enters the freezer at a temperature of 15°C and is frozen to a final temperature of -20°C. Calculate the rate of hea

Explain the functions of folate, Explain the Functions of Folate? Folate,...

Explain the Functions of Folate? Folate, also known as folic acid, is essential for good health. Folate requiring reactions include those involved in phases of amino acid metabol

Decomposers - biotic components, Decomposers - Biotic Components Also ...

Decomposers - Biotic Components Also known as saprotrophs. Mostly, these are microscopic and are heterotrophic in nature. Decomposer organisms obtain their energy and nutrient

Haemodynamics, Haemodynamics :  The type of valves chosen should have exce...

Haemodynamics :  The type of valves chosen should have excellent haemodynamics. In studies at rest and on exercise the valve should produce only acceptable diastolic gradients in

Define extra enterocyte transfer - non haem iron absorption, Define Extra e...

Define Extra enterocyte transfer - non haem iron absorption? Extra enterocyte transfer: Little is known about iron transport across the baso- lateral membrane. After crossing t

Psychology, Which theory focuses on how people are different than animals? ...

Which theory focuses on how people are different than animals? Functionalism Eclecticism Humanism Behaviorism

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd