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18 Cards in this Set
- Front
- Back
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Ova
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Female gametes
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Ovaries
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Paired small, lumpy, almond-shaped organs near the lateral walls of the pelvic cavity; responsible for the production of ova, secretion of female sex hormones, and the secretion of inhibin
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Oogenesis
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Ovum production
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Oogonia
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Ovarian stem cells
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Primary oocytes
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Daughter cells resulting from the mitosis of oogonia
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Polar bodies
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Nonfunctional cells (usually three) produced by oogenesis that later disintegrate
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Ovarian follicles
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The sites of oocyte growth and meiosis I of oogenesis
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Primordial follicle
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The combination of clusters of primary oocytes in the outer portion of each ovary that are each surrounded by a single layer of follicle cells
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Primary follicles
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Follicle development begins with the activation of primordial follicles into these
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Zona pellucida
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Region where microvilli from the surrounding follicle cells intermingle with microvilli originating at the surface of the oocyte
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Secondary follicle
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Formed when primary follicles mature
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Ovarian cycle
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28-day cycle that includes follicle maturation, ovulation, and the subsequent release of hormones by the remaining follicle cells
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Tertiary follicle
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Formed when a secondary follicle is stimulated by FSH in days 10-14 of the ovarian cycle; its large size creates a prominent bulge in the surface of the ovary
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Antrum
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The expanded central chamber of the tertiary follicle into which the oocyte and its covering of follicular cells project
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Ovulation
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Phase of the ovarian cycle in which the tertiary follicle releases the secondary oocyte, the distended follicular wall then ruptures and releases the follicular contents (including the secondary oocyte) into the pelvic cavity
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Corpus luteum
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Endocrine structure formed in the luteal phase of the ovarian cycle when the empty follicle collapses and the remaining follicular cells invade the resulting cavity and multiply
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Uterine tubes
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Organs that conduct oocytes from the ovaries to the uterus
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Infundibulum
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An expanded funnel of the uterine tube end closest to the ovary
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