Sentence examples for ovum cell from inspiring English sources

Moreover, LH initiates transformation of the ovarian follicle remnants into corpus luteum which, through the release of progesterone, prepares uterus for implantation of the fertilized ovum cell.

"Germ tissue [or the sperm and ovum cells] is the toughest of all human tissues," Dr. Jellinek has pointed out.

Before being attached to the mucus traps, M. rubrum cells reduced significantly their swimming frequency (from ∼41 to 19 ± 3 jumps min−1) after only 4 h of initial contact with D. cf. ovum cells.

Boveri's third report proved the theory introduced by Belgian cytologist Edouard van Beneden that the ovum and sperm cell contribute equal numbers of chromosomes to the new cell created during fertilization.

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.

For birds, the unfertilized yolk is a single cell (ovum), and the deutoplasm part will be gradually accumulated during oogenesis.

Oogenesis, in the human female reproductive system, growth process in which the primary egg cell (or ovum) becomes a mature ovum.

Most mammal zygotes go though holoblastic cleavage, meaning that following fertilization the ovum is split due to cell divisions into multiple, divisible daughter cells.

One, the identification in 1827 by Prussian-Estonian embryologist Karl Ernst Ritter von Baer of the ovum (unfertilized egg) as a cell, was important considering the many ways it often differs from other cells.

Eggs must combine with sperm or die, they write, and an organism "was never itself a sperm cell or an ovum".