Explain the secretary phase - menstrual cycle, Biology

Assignment Help:

Explain the Secretary Phase - Menstrual Cycle

After ovulation, the lining of ovarian follicle is stimulated by LH to develop corpus luteum which produces progesterone. The endometrium becomes oedematous, watery mucous increases. This is believed to assist the passage of spermatozoa through the uterus to uterine tubes where the ovum is usually fertilized. The ovum fertilizes by 8 hours. The survival of the sperm is only for 24 hours. The date of ovulation however, cannot be predicted with certainty, even when the cycles are regular. If fertilization of ovum does not occur, cycle goes to a third phase - the menstrual phase.


Related Discussions:- Explain the secretary phase - menstrual cycle

What proportion of offspring will have same rflp pattern, A laboratory mous...

A laboratory mouse homozygous for an RFLP marker is mated to a wild mouse that is heterozygous for that marker. One of the heterozygous individuals resulting from this cross is mat

Carbohydrates requirement in chronic diarrhoea, Q. Carbohydrates requiremen...

Q. Carbohydrates requirement in chronic diarrhoea? Adequate amount of carbohydrates i. e 60-65% of the total energy should be given to the patient. Easily assimilated carbohydr

Interkinesis, There is no Interphase preceding second meiotic division. ...

There is no Interphase preceding second meiotic division. There is a brief intervening period called Interkinesis During this period there may be synthesis of some reserve fo

Active instruments-small occlusal, Active instruments -This category o...

Active instruments -This category of instruments actively engage a restorative , enabling a specific dislodgment force to potentially lift off the prosthesis -These devices

State the amount of micronutrients in fertilizers, State the amount of micr...

State the amount of micronutrients in fertilizers The amount of micronutrients in fertilizers must be much more carefully controlled than the macronutrients. The difference be

Extractive use of biodiversity, Q. Extractive use of biodiversity? This...

Q. Extractive use of biodiversity? This includes direct use such as harvesting of wild plant species for use as food, fuel, fodder, fibre, shelter or medicine and hunting anima

Explain digestion system, DIGESTION Digestive enzymes break down food p...

DIGESTION Digestive enzymes break down food particles into smaller units. You will see  that the final breakdown products of protein digestion are single amino acids or small c

Eliminate heat energy at the rate of approximately, A large leaf on a plant...

A large leaf on a plant in bright sunshine evaporates 5 grams of water per hour. Cooling the leaf through evaporation in this manner enables the plant to eliminate heat energy at t

Viral vectors, Viral vectors   There are a large number of viral vector...

Viral vectors   There are a large number of viral vectors available which can transfer the desired sequence properly into the host. Examples of the viral vectors are as follows

Nurse''s role during phototherapy, Nurse's Role During Phototherapy Y...

Nurse's Role During Phototherapy You should take care of following while nursing the baby in receiving phototherapy. Check the lights of phototherapy unit before use and

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