Advertisements
Advertisements
Question
Explain the events that occur in a graafian follicle at the time of ovulation and thereafter.
Advertisements
Solution
At the time of ovulation, the release of gonadotropins (LH and FSH) increases. The LH and FSH are at their peak in the middle of the cycle (14th day) and cause the rupture of the Graafian follicle to release the ovum. The remains of the Graafian follicle get converted to the corpus luteum, which secretes progesterone for the maintenance of the endometrium in case of pregnancy.
APPEARS IN
RELATED QUESTIONS
Explain the role of pituitary and the ovarian hormones in menstrual cycle in human females
Complete the following by filling in the blanks 1 to 5 with appropriate words:
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).
Level of which hormones are at their highest during the luteal phase (second half of the cycle) of the menstrual cycle?
In case the ova does not fertilize, which of the following events will take place?
Exit from the cell cycle and remain dormant for long time by a cell is represented by one of the following phases of the cell cycle:
The secretory phase in the human menstrual cycle is also called:
The figure show a section of human ovary. Select the option which gives the correct identification of either A or B with function/characteristic.
The graph given below shows the number of primordial follicles per ovary in women at different ages. Study the graph and answer the questions that follow.
- What is the average age of the women at the onset of menopause?
- At what age are maximum primordial follicles present in the ovary, according to the given graph?
The onset of menstruation in a human female is called ______.
In the human menstrual cycle, the ovulation occurs around ______.
