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  2. Obstetric ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Obstetric_ultrasonography

    Obstetric ultrasonography, or prenatal ultrasound, is the use of medical ultrasonography in pregnancy, in which sound waves are used to create real-time visual images of the developing embryo or fetus in the uterus (womb).

  3. Vaginal ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Vaginal_ultrasonography

    Vaginal ultrasonography is a medical ultrasonography that applies an ultrasound transducer (or "probe") in the vagina to visualize organs within the pelvic cavity. It is also called transvaginal ultrasonography because the ultrasound waves go across the vaginal wall to study tissues beyond it. [1]

  4. Pregnancy test - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_test

    Both abdominal and vaginal ultrasound may be used, but vaginal ultrasound allows for earlier visualization of the pregnancy. With obstetric ultrasonography the gestational sac (intrauterine fluid collection) can be visualized at 4.5 to 5 weeks gestation , the yolk sac at 5 to 6 weeks gestation, and fetal pole at 5.5 to 6 weeks gestation.

  5. Ovarian reserve - Wikipedia

    en.wikipedia.org/wiki/Ovarian_reserve

    The ovary is generally thought of as an egg bank from which the woman draws during her reproductive life. The human ovary contains a population of primordial follicles.At 18–22 weeks post-conception, the female ovary contains its peak number of follicles (about 300,000 in the average case, but individual peak populations range from 35,000 to 2.5 million [3]). p The size of the initial ...

  6. Corpus luteum - Wikipedia

    en.wikipedia.org/wiki/Corpus_luteum

    While the oocyte (later the zygote if fertilization occurs) traverses the fallopian tube into the uterus, the corpus luteum remains in the ovary. [citation needed] The corpus luteum is typically very large relative to the size of the ovary; in humans, the size of the structure ranges from under 2 cm to 5 cm in diameter. [4]

  7. Ovary - Wikipedia

    en.wikipedia.org/wiki/Ovary

    The ovary (from Latin ōvārium 'egg') is a gonad in the female reproductive system that produces ova; [1] when released, an ovum travels through the fallopian tube/oviduct into the uterus. There is an ovary on the left and the right side of the body.

  8. Ovarian follicle - Wikipedia

    en.wikipedia.org/wiki/Ovarian_follicle

    An ovarian follicle is a roughly spheroid cellular aggregation set found in the ovaries.It secretes hormones that influence stages of the menstrual cycle.At the time of puberty, women have approximately 200,000 to 300,000 follicles, [1] [2] each with the potential to release an egg cell (ovum) at ovulation for fertilization. [3]

  9. Uterus - Wikipedia

    en.wikipedia.org/wiki/Uterus

    During pregnancy, the uterine glands and blood vessels in the endometrium further increase in size and number and form the decidua. Vascular spaces fuse and become interconnected, forming the placenta, which supplies oxygen and nutrition to the embryo and fetus. [8] [9] The myometrium of the uterus mostly consists of smooth muscle.