Terms Related to Pregnant Women

• Antenatal Diagnosis

  Determination of the nature of a pathological condition or disease in the postimplantation embryo, fetus, or pregnant female before birth.

• Sperm-Ovum Interaction

  Interactive processes between the ovum and the spermatozoon.

• Sperm Capacitation

  The process by which a spermatozoon becomes capable of fertilizing an ovum after it reaches the ampullary portion of the uterine tube.

• Ovum Cleavage Stage

  The embryo in its earliest stage, lasting from the first mitotic division of the fertilized ovum into two blastomeres to the formation of the morula, ...

• Superfetation

  The fertilization and subsequent development of an ovum when a fetus is already present in the uterus, a result of fertilization of ova during different ...

• Acrosome Reaction

  Changes that occur to liberate the enzymes of the ACROSOME of SPERMATOZOA that allow the entry of a spermatozoon into the ovum.

• Embryo Development

  Morphologic and physiologic growth and development of the mammalian embryo or fetus.