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

Define tracheal system in details., Define tracheal system in details. ...

Define tracheal system in details. Respiratory system found in insects and some spiders where air passes directly to the tissues through a series of tubules. Since oxygen tran

Define advantages of blanching, Define Advantages of Blanching? Blanch...

Define Advantages of Blanching? Blanching as a pre-treatment before drying has the following advantages: 1. It helps in cleaning the material and reducing the amount

Define prevention of idd - communication campaign, Define prevention of IDD...

Define prevention of IDD - Communication Campaign? A mass communication campaign is needed to create awareness in the community about the consequences of IDD and the benefits o

Which of substance are microfilaments, Q. Which Of substance are microfilam...

Q. Which Of substance are microfilaments made and what are the properties of these elements that give motility to cells? Microfilaments are made of actin a protein. The contrac

Describe about the term - bacterial infections, Describe about the term - B...

Describe about the term - Bacterial Infections Bacterium is a loose generic name for any microorganism (typically one celled) that has no chlorophyll and multiplies by simple d

Names of animals, write the names of these animals? 1.amoeba 2.sponge 3.hyd...

write the names of these animals? 1.amoeba 2.sponge 3.hydra 4.liverfluck 5.Iscariot 6.leech 7.insects 8.oyster 9.starfish 10.frog

What is acid cleaning compounds, Q. What is Acid cleaning compounds? Ac...

Q. What is Acid cleaning compounds? Acid-based cleaners like phosphoric acid and hydrofluoric acid are commonly used. They are very useful in removing minimal scales that

Coral reefs, Coral reefs form in clear warm tropical seas and are particula...

Coral reefs form in clear warm tropical seas and are particularly well developed in the South Pacific. They are formed by accumulation in calcarious skeletons of tiny colonial anim

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