Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Contraceptive Pill - Reproduction
About sixty million women in the world are currently using oral steroid contraceptives. These contraceptives usually consist of a synthetic estrogen combined with synthetic progesterone in the form of pills that are taken once each day for three weeks after the last day of menstrual period. This procedure causes an immediate increase in blood levels of ovarian steroids (from the pill), which is maintained for the normal duration of a monthly cycle. As a result of negative feedback inhibition of gonadotropins secretion ovulation never occurs. The entire cycle is like a false luteal phase, with high levels of progesterone, estrogen and low levels of gonadotropins.
Since the contraceptive pills contain ovarian steroid hormones, the endometrium proliferates and becomes secretory just as it does during a normal cycle. In order to prevent an abnormal growth of the endometrium, women stop taking the pill after three weeks. This causes estrogen and progesterone levels to fall, and permits menstruation to occur. The contraceptive pill is an extremely effective method of birth control, but it does have potentially serious side effects-including an increased incidence of thromboembolism, cardiovascular disorders, and endometrial and breast cancer. It has been pointed out, however, that the mortality risk of contraceptive pills is still much lower than the risk of death from the complications of pregnancy or from automobile accidents.
Many definitions of species have been offered, but none of them proved to be satisfactory. The definitions did not categorically provide the basis to decide whether two similar gro
Listed below are examples of behaviors that typify a defense mechanism at work. For each example choose the correct defense mechanism and explain the reason for your choice. 1. J
Explain about the Importance of Vitamins? Vitamins are the organic substances that act as coenzyme and/or regulator of metabolic processes. There are 13 known vitamins, most of
The ultimate aim of somatic gene therapy is to alter the genetic material of living cells which involves transfer of DNA. Genetic material is transferred by various methods like us
Alcohol Related Emergencies: Alcohol is one of the most serious health problems. Alcoholism is defined as a primary or chronic disease with genetic, psychological and environ
phylum porifera
In yeast, a new mutation called suc was recently discovered. The suc mutant cannot use sucrose as a source of carbon, and will not grow if the culture medium contains only sucrose
Types of Osmotic Exchanges The osmotic exchanges that take place between an animal and its environment are of two different types: Obligatory exchanges and Regulated
Define the Energy Cost of Growth? The energy cost of growth has two components: 1) The energy needed to synthesize growing tissues; and 2) The energy deposited in these tis
Explain Cytological Approach in Taxonomy Cytotaxonomy deals with all the aspects of taxonomy at a cellular level. This includes, the structural, genetic and biochemical aspect
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd