Sentence examples for ovum from inspiring English sources

In some cases, though, the unfertilised ovum itself is believed to be affected.

See also ovulation; ovum.

See also ovum.

One of these two new cells is usually larger than the other and is known as the secondary ovum; the smaller cell is known as a polar body.

In the case of multicellular animals we find there are two kinds of sex cells: the female sex cell (ovum, or egg), derived from an oocyte (immature egg), and the male sex cell (spermatozoon or sperm), derived from a spermatocyte.

Prostaglandins are believed to aid fertilization by causing the mucous lining of the cervix to be more receptive to sperm as well as by aiding the movement of the sperm toward the ovum with peristaltic contractions of the uterus and fallopian tubes.

Nuclear transfer is most common and involves enucleating an ovum, or egg, with all the genetic material removed.

As the blood supply supporting the ovum decreases, hormonal support for the pregnancy declines, and the decidua (endometrial tissue modified for pregnancy) begins to slough off and is excreted vaginally.

If transport to the uterus is sufficiently delayed, the ovum becomes too large for easy passage and becomes imbedded in the wall of the fallopian tubule.

In cervical pregnancy, the ovum implants in the uterine cervix or in the isthmus (the opening into the cervix).

In the second week of prenatal life, the rapidly growing blastocyst (the bundle of cells into which a fertilized ovum divides) flattens into what is called the embryonic disk.