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प्रश्न
Name the function of the following:
Corpus luteum
State the main function of the corpus luteum.
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उत्तर
It secretes progesterone, a hormone that prepares the uterus for implantation. If implantation fails, the corpus luteum goes inactive and degenerates. If an embryo is implanted, the corpus luteum continues to release progesterone until the fourth month of pregnancy, when the placenta takes over this function.
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संबंधित प्रश्न
Explain the menstrual phase in a human female. State the levels of ovarian and pituitary hormones during this phase.
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
Explain the role of pituitary and the ovarian hormones in menstrual cycle in human females
The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ______ (1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the ______ (2) follicle. The process of releasing the egg from the ovary is called ______ (3). The ovum is picked up by the oviducal funnel and fertilization takes place in the ______ (4). In about a weak the blastocyst gets fixed in the endometrium of the uterus and this process is called ______ (5).
Mention one significant difference between Hormones of ovulatory phase and hormones of luteal phase
Define the following term :
Ovulation
Differentiate between the following pair:
Menarche and menopause
Give appropriate terms for each of the following process:
Fixing of developing zygote (blastocyst) on the uterine wall.
Give Reasons
The chances of pregnancy to occur are most favourable on or about the 14th day of the menstrual cycle. Explain.
Complete the following sentences with appropriate word:
The human gestation period is about ____________.
Multiple Choice Question:
The onset of menstruation in the female is termed
How many pairs of testis are present in human male?
State the names of four hormones which control menstrual cycle.
Explain the importance of cleanliness during the time of menstrual cycle in girls.
Painful menstruation is termed as ____________.
Which one of the following menstrual irregularities is correctly matched?
Which one of the following events occurs during the secretory phase of the menstrual cycle?
Menstruation begins due to ______.
How long does the secretory phase of the menstrual cycle last?
Calculate the number of spermatozoa produced by a single primary spermatocyte.
When does ovulatory phase occur?
Calculate the expected date of ovulation, if in a normal menstruating woman, gets her menses on 5th April.
Secretion of progesterone by corpus luteum is initiated by ______.
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
Corpus luteum ______.
Which one of the following events is correctly matched with the time period in a normal menstrual cycle?
Menstruation normally occurs once in ______.
Define ovulation.
Which of the following events is not associated with ovulation in human females?
The secretory phase in the human menstrual cycle is also called:
About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH Surge) normally occurs?
After ovulation the collapsed ovarian follicle shrinks and becomes filled with cell to form:
Describe hormonal control in various phases of the menstrual cycle.
Write a short note on Secretory Phase.
Complete the table:
| Number | Type | No. of pairs | Region |
| C1C8 | Cervical | ______ | Neck |
| T1T12 | ______ | 12 pairs | ______ |
| L1L5 | Lumbar | ______ | Lower back |
| S1S5 | ______ | 5 pairs | ______ |
| CO1 | Coccygeal | ______ | ______ |
The enlarged mature follicle bursts to release the egg.
The onset of menstruation in women is called ______.
