--%>

Event marking the begining of menstural cycle

Specify the event which marks the beginning of menstrual cycle? Explain the concentration of blood of FSH, LH, estrogens and progesterone during this phase of cycle?

E

Expert

Verified

By convention, menstrual cycle begins at the day where menses begins. Menses refers to the endometrial hemorrhage secreted through the vaginal canal. At these days hormones FSH, LH, estrogens and progesterone are generally in low concentration.

   Related Questions in Biology

  • Q : Vaccines Why vaccines are used within

    Why vaccines are used within the prevention but not in the treatment of infections? And why can antivenom serums are utilized in treatment and prevention?

  • Q : STRATEGY AND POLICY DISTINGUISHED

    STRATEGY AND POLICY DISTINGUISHED Policy is a guide to the thinking and action of those who make decisions while strategy relates to the direction in which human and

  • Q : Disadvantages of Decentralization

    Disadvantages of Decentralization Lack of Coordination: under decentralization each division or department of the enterprise has to be self sufficie

  • Q : Computed tomography scan or CT scan

    Define the term computed tomography scan or CT scan in brief?

  • Q : Custodial model - An Organizational

    Workers being managed under the autocratic model often feel insecurity and frustration. They may even show aggression towards their boss and families and neighbors. That is why progressive managers felt that there must be some way to develop better employee relationships so that insecurity and fr

  • Q : Describe Materials Planning Materials

    Materials Planning: It is the planning and control of functions supporting the complete cycle (that is, flow) of materials, and the related flow of information. Such functions comprise (A) identification, (B) cataloging, (C) standardization, (D) requi

  • Q : Reproduction procedure in chordates

    List out the reproduction procedure in chordates?

  • Q : Functions of progesterone Briefly write

    Briefly write down the functions of progesterone?

  • Q : What is digestion What do you mean by

    What do you mean by the digestion?

  • Q : Describe Licensing Agreements Licensing

    Licensing Agreements: It is the written contract under which the owner of a copyright, recognize how, patent, service mark, trademark, or another intellectual property, permits a licensee to employ, make, or sell copies of the original. These agreemen