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Questions and Answers
What is the approximate duration of the menstrual phase?
What is the approximate duration of the menstrual phase?
During which phase does the endometrium reach a thickness of about 4 mm?
During which phase does the endometrium reach a thickness of about 4 mm?
What type of cells become columnar and filled with secretions during the secretory phase?
What type of cells become columnar and filled with secretions during the secretory phase?
Which hormone primarily influences the proliferative phase of the menstrual cycle?
Which hormone primarily influences the proliferative phase of the menstrual cycle?
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If fertilization occurs, how long does the cycle remain in the secretory phase?
If fertilization occurs, how long does the cycle remain in the secretory phase?
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Flashcards
Menstrual Phase
Menstrual Phase
This phase lasts approximately 5 days. Blood loss occurs (50-60 cc) and consists of blood and endometrial tissue fragments. Blood does not clot. Endometrial thickness is about 0.5 mm. The basal layer of the endometrium contains the bases of uterine glands.
Regenerative Phase
Regenerative Phase
This phase lasts 3-4 days during which epithelial cells from the uterine glands spread to cover the endometrial surface via a flat cell layer.
Proliferative (Follicular) Phase
Proliferative (Follicular) Phase
This phase lasts 5-6 days. The endometrium thickens to approximately 4 mm, cells become cuboidal, uterine glands become longer and straighter. It is influenced by estrogen secreted by the developing ovarian follicle.
Secretory (Luteal) Phase
Secretory (Luteal) Phase
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Secretory Phase in Pregnancy
Secretory Phase in Pregnancy
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