--%>
Assignment Help - homework help

Duration of menstrual cycle

Explain the normal duration of menstrual cycle? How does method of the calendar contraceptive work?

E

Expert

Verified

Normal duration of the menstrual cycle is 28 days though it may vary among several women or in different cycles of same woman. In calendar contraceptive method, the date n-14 (n minus 14) is used, where n refers to the number of days of normal menstrual cycle of woman (generally n=28). The safety margin +3 or –3 are the days around n-14 in which the intercourse must be avoided in order to avoid pregnancy. (This method is not exempt from failures. A doctor should always be consulted before relying on any of the contraceptive method.)

   Related Questions in Biology

  • Q : Immunology I need help answering a

    I need help answering a couple questions on this assignment, please

    		•
  • Q : Explanation of antigen and antibody

    Give a brief explanation of the antigen and antibody interaction.

    		•
  • Q : What is the Efficiency of utilization

    Efficiency of utilization in sales generation: The concept of working capital can be used along with turnover to judge the velocity with which working capital is being used to generate sales. A high ratio indicates the high efficiency of firm to gener

    		•
  • Q : What are flagella and cilia What are

    What are flagella and cilia? How do such structures acquire movement? Provide some illustrations of flagellated and ciliated cells in humans?

    		•
  • Q : Explain Multinational Workforce

    Multinational Workforce: It is a growing trend in business world globalization. Companies have joint ventures all along with branch business all through the world. Growing globalization has formed a situation in the place of work where employees bring

    		•
  • Q : Amnion taken as an adaptation to

    Why can the amnion also be taken as an adaptation to terrestrial life?

    		•
  • Q : Depolarization of neuronal plasma

    How depolarization of the neuronal plasma membrane is produced? How does the cell come back to its original rest?

    		•
  • Q : Process of inhalation Explain, how are

    Explain, how are process of the inhalation and expiration is carried out?

    		•
  • Q : Negative Aspects-Group Decision

    Group decision-making has following negative features, which may either affect the quality of decision or cost of decision. 1)     Time-consuming and costly: inevitably, groups take more time to reach decisions than individuals. 2)  &

    		•
  • Q : Naturally break of bark Explain why

    Explain why does the bark often die and break naturally?

    		•