what are the ovuliferous scale?
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ovuliferous scale One of a group of large woody specialized leaves that form the female cone of conifers and related trees. It bears the ovules, which develop into seeds. A Dictionary of Biology. × "ovuliferous scale ."
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Oogenesis, in the human female reproductive system, growth process in which the primary egg cell (or ovum) becomes a mature ovum. ... The primary ova remain dormant until just prior to ovulation, when an egg is released from the ovary.
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LH is the catalyst for ovulation, and an OPK detects the surge of LH. The LH surge indicates ovulation will occur at some point within the next twelve to forty-eight hours (on average).
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Ovarian size changes with age. Ovaries are of the smallest size before a woman reaches puberty, and after menopause; they increase in size during puberty and the pre-menopausal stage in a woman's life. The average size of a woman's ovaries is 3 cm in length, 2.5 cm in height, and 1.5 cm in width.
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Normal oogonia in human ovaries are spherical or ovoid in shape and are found amongst neighboring somatic cells and oocytes at different phases of development.
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Ovulation can be calculated by starting with the first day of the last menstrual period (LMP) or by calculating 12-16 days from the next expected period. Most women ovulate anywhere between Day 11 – Day 21 of their cycle, counting from the first day of the LMP.
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A woman ovulates for 12 to 24 hours during each menstrual cycle. Ovulation happens after your luteinizing hormone (LH) surges, causing a mature egg to leave the uterus and travel down the fallopian tube. The egg survives for 12-24 hours, then it disintegrates into the uterine lining and sheds with the monthly period.
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Facts about timing Ovulation is when a mature egg is released from the ovary. The egg then moves down the fallopian tube where it can be fertilised. If sperm are in the fallopian tube when the egg is released, there is a good chance that the egg will be fertilised, creating an embryo, which can grow into a baby.
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Most people ovulate between days 11 and 21 of their cycle. The first day of their last menstrual period (LMP) is day 1 of the cycle. Ovulation does not always occur on the same day every month and can vary by a day or more either side of the expected date.
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['(i) Inherent or Natural Fertility:', '(ii) Acquired Fertility:', '(i) Natural Factors:', '(ii) Artificial Factors:']
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The average person ovulates about 16 days after their last period. If someone ovulates early, their cycle may be shorter. If they ovulate later, the cycle may be longer.
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The ovaries The average normal size is 3.5cm x 2.5cm x 1.5cm. After menopause the ovaries generally measure 2cm x 1.5cm x 1cm or less. There may be cysts present on the ovaries. These may include follicular cysts, corpus luteum cysts, haemorrhagic cysts, endometriomas, simple cysts and polycystic appearing ovaries.
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An ovule is the female organ of reproduction in plants. Ova is the plural of ovum. Ova are the eggs produced in the ovary. They are the female portion of reproduction which when joined with the sperm or male portion will result in a new organism.
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Ovulation is when a woman's ovary releases a mature egg. It occurs roughly 11 to 21 days after the first day of your last period. Ovulation spotting usually only lasts a day or two at the same time as ovulation.
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Accuracy and Special Concerns As mentioned above, there is no such thing as a perfectly “accurate” ovulation calendar or calculator. By definition, they are based on averages, and even if you've been charting your periods, your cycle length and ovulation date can change.
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['Medical examination. ... ', 'Pelvic ultrasound. ... ', 'Basal body temperature graph (BBT) ... ', 'Ovulation Predictor Kit (OPK) ... ', 'Evaluation of egg quality. ... ', 'Evaluating lack of menstrual cycle. ... ', 'Evaluating fallopian tube function.']
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Ovarian cysts may be classified according to whether they are a variant of the normal menstrual cycle, referred to as a functional or follicular cyst. Ovarian cysts are considered large when they are over 5 cm and giant when they are over 15 cm.