The cellular layer that disintegrates and regenerates again and again ...
- The functional layer of the human endometrium is a highly regenerative tissue undergoing monthly cycles of growth, differentiation, and shedding during a woman's reproductive years.
- Fluctuating levels of circulating estrogen and progesterone orchestrate this dramatic remodelling of human endometrium.
Hence, the correct option is B.
NCERT Reference: topic “MENSTRUAL CYCLE” of chapter: Human Reproduction.
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The cellular layer that disintegrates and regenerates again and again ...
Endometrium of uterus is the cellular layer that disintegrates and regenerates again and again.
Explanation:
The endometrium is the inner lining of the uterus that undergoes cyclical changes every month. It thickens in preparation for pregnancy and sheds if fertilization does not occur. The disintegration of the endometrium is called menstruation, which occurs every 28-35 days in women of reproductive age. After the shedding of the endometrial lining, the uterus regenerates a new layer of tissue to prepare for the next menstrual cycle. This process of shedding and regeneration of the endometrium is repeated throughout a woman's reproductive years. Therefore, the endometrium is the cellular layer that disintegrates and regenerates again and again.
The cellular layer that disintegrates and regenerates again and again ...
The endometrium is the innermost lining layer of the uterus, and functions to prevent adhesions between the opposed walls of the myometrium, thereby maintaining the patency of the uterine cavity. During the menstrual cycle or estrous cycle, the endometrium grows to a