Luteolysis is the process whereby luteal tissue undergoes regression and cell death. This process can be further categorized into functional and structural luteolysis. 1. what is the progression of functional luteolysis
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The life span of the ovarian corpus luteum is extended for nearly three months after implantation, but otherwise it deteriorates. (a) Explain why this is so. (b) Explain why it is important that the corpus luteum remain functional following implantation.
7. The secretes large amounts of the hormone and small amounts of . 8. If fertilization doesn't occur, the degenerates into inactive scar tissue called the . 9. Levels of and plummet, causing the endometrium to slough off, resulting in menstruation. Make a Connection: Menstrual Cycle Unscramble the words on the left to discover the names of the four phases of the menstrual cycle. Then draw a line to link each phase to its particular characteristics. 1. LUTEAL PHASE 2. FOLLICULAR PHASE 3. OVULATION 4. MENSTRUAL PHASE a. Involves the atrophy of the corpus luteum b. Blood vessels grow as the base layer is repaired c. Time when menstruation occurs d. Involves ischemia and necrosis of the endometrium e. Dominated by increased levels of progesterone f. Involves the shedding of the endometrium's functional layer g. Encompasses days 26 to 28 of the cycle h. Encompasses days 6 to 14 of the cycle i. Rising levels of estrogen dominate j. Encompasses days 15 to 26 of the cycle k. Encompasses days 1 to 5 of the cycle l. Involves increased thickening of the endometrium as it becomes suitable for implantation of a fertilized egg m. Instituted by plummeting levels of progesterone
Adi S.
Ovarian follicles contain various stages of development: oocytes, progestin-secreting granulosa cells, and primordial follicles. When the corpus luteum (CL) degenerates, circulating levels of progesterone and estrogen decrease rapidly. FSH and LH secretion start to decrease due to the inhibitory effects of the gonadal steroids being withdrawn. Portions of the endometrium slough off. The corpus luteum can persist beyond its two-week life span only if it is stimulated by the hormone: LH. The reproductive system produces gametes, stores and transports gametes, and nourishes gametes. The muscular layer of the uterus is the myometrium. The surge of LH that occurs during the middle of the ovarian cycle triggers ovulation. The principle hormone released by the corpus luteum, also known as the "hormone of pregnancy," is progesterone. The developing follicular cells secrete estrogen, FSH, and LH. The part of the female reproductive system that is shed during menstruation is the stratum functionalis of the endometrium.
Madhur L.
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