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Question
Explain the menstruation phases in the menstrual cycle of a human female.
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Solution
- During menstruation, the uterine lining, known as the endometrium, sheds along with blood vessels and tissue debris.
- If fertilization does not occur, this process is started by a reduction in estrogen and progesterone.
- Menstruation is the start of the menstrual cycle and usually lasts 3-7 day.
RELATED QUESTIONS
Draw a neat and well-labeled diagram showing T.S. of the ovary and describe the menstrual cycle in human females.
Multiple Choice Question:
The onset of menstruation in the female is termed
Which one of the following menstrual irregularities is correctly matched?
Identify the INCORRECT statement.
Secretion of progesterone by corpus luteum is initiated by ______.
In the human female, menstruation can be deferred by the administration of ______.
A biology student after studying the different levels of hormones during the menstrual cycle was comparing 2 subjects (Patients). A table was created after looking at the levels of hormones A and B for Subjects 1 and 2. Read the information in the table and answer the question that follows.
| HORMONE A | HORMONE B | |
| Subject 1 | Shows a peak on the 14th Day of the menstrual cycle. | Falls down during the luteal phase. |
| Subject 2 | Shows a peak on the 14th Day of the menstrual cycle. | The level is maintained high in the luteal phase. |
If the peak of Hormone A does not appear in the study for Subject 1, which of the following statement is true?
In case the ova does not fertilize, which of the following events will take place?
The level of progesterone is high at which phase in the menstrual cycle?
Describe hormonal control in various phases of the menstrual cycle.
