IVF Medical Term

  • What is AH (Assisted Hatching)  ?
    The procedure in which the zona (or egg shell) is softened or thinned usually by laser or acid.
     
  • What is Blastocyst ?
    Five-six days after fertilisation, at ‘normal’ implantation time, the multiple cell embryo develops a cystic central structure.
     
  • What is Cervix ?
    The lower section of the uterus which protrudes into the vagina and dilates during labour to allow the passage of the infant.
     
  • Donor Insemination
    The use of sperm from a male donor in order to achieve a pregnancy. Usually the husband has no sperm (or very few) and the chance of pregnancy is remote.
     
  • Embryo
    After fertilisation the egg begins to multiply and is called an embryo.
     
  • Endometrium
    The membrane lining the uterus.
  • Endometriosis
    The presence of endometrial tissue (the normal lining of the uterus) in abnormal locations such as the Fallopian tubes, ovaries and peritoneal cavity.
     
  • Fallopian Tube
    Either of a pair of tubes that conduct the oocyte (egg) from the ovary to the uterus. Fertilisation normally takes place within this structure.
     
  • What is Follicle ?
    The structure within the ovary containing the ripening egg which is released at ovulation
     
  • Follicular Phase
    The first half of a woman’s ovarian cycle following menstruation and during which follicles grow.
     
  • Follicle Stimulating Hormone (FSH)
    A hormone produced and released from the pituitary that stimulates the ovary to ripen a follicle for ovulation.
     
  • GIFT (Gamete Intra-Fallopian Transfer)
    The procedure where eggs are removed from the ovary and placed with sperm into the Fallopian tube.
     
  • ICSI (Intra Cytoplasmic Sperm Injection)
    The IVF technique where a single sperm is selected and directly injected into an egg.
     
  • Implantation
    The embedding of the embryo in the lining of the uterus.
     
  • IVF (In Vitro Fertilisation)
    The procedure in which an egg and sperm are mixed outside the body. The fertilised egg (embryo) is allowed to grow in a protected environment for some days before being transferred  back into the uterus.
     
  • Luteal Phase
    The last 14 days of a menstrual cycle which is associated with progesterone production.
     
  • LH (Luteinizing Hormone)
    A hormone produced and released by the pituitary gland. It is responsible for ovulation and the maintenance of corpus luteal function.
     
  • Oestrogen (or Estrogen)
    The primary female hormone produced mainly from the ovary from puberty until the menopause.
     
  • Ovaries
    The female sex glands which produce eggs.
     
  • Ovulation
    The time the egg is released.
     
  • Ovum (Oocyte)
    The fully mature egg produced from the ovary each month.
     
  • Pituitary gland
    The gland located at the base of the brain, below the hypothalamus, which controls most hormone functions in the human
     
  • Progesterone
    The hormone produced by the empty follicle (corpus luteum) after ovulation.
     
  • Semen
    The ejaculated fluid comprising sperm and secretions of the accessory sex glands of the male.
     
  • Spermatozoa (sperm)
    The male reproductive cells (gametes).
     
  • Ultrasound (scan)
    A modified ‘radar’ used to see the follicles in the ovary and pregnancy in the uterus.
     
  • Uterus (womb)
    The female reproductive organ that supports the developing foetus. It is the source of a woman’s menstruation.

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