HISTOLOGY
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During menstruation, the bleeding is the result of:
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Detachment of the myometrium
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Deterioration of the endometrium
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A ruptured follicle
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A ruptured fallopian tube
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Explanation:
Detailed explanation-1: -Following ovulation, the corpus luteum secretes progesterone, leading to a progesterone-dominant stage during which the endometrium decidualizes. In the absence of pregnancy, after the demise of the corpus luteum and progesterone withdrawal, the endometrium is shed during menstruation.
Detailed explanation-2: -The endometrium changes throughout the menstrual cycle in response to hormones. During the first part of the cycle, the hormone estrogen is made by the ovaries. Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy.
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