Definition of Segmentation nucleus. Meaning of Segmentation nucleus. Synonyms of Segmentation nucleus

Here you will find one or more explanations in English for the word Segmentation nucleus. Also in the bottom left of the page several parts of wikipedia pages related to the word Segmentation nucleus and, of course, Segmentation nucleus synonyms and on the right images related to the word Segmentation nucleus.

Definition of Segmentation nucleus

Segmentation nucleus
Segmentation Seg`men*ta"tion, n. The act or process of dividing into segments; specifically (Biol.), a self-division into segments as a result of growth; cell cleavage; cell multiplication; endogenous cell formation. Segmentation cavity (Biol.), the cavity formed by the arrangement of the cells in segmentation or cleavage of the ovum; the cavity of the blastosphere. In the gastrula stage, the segmentation cavity in which the mesoblast is formed lies between the entoblast and ectoblast. See Illust. of Invagination. Segmentation nucleus (Biol.), the body formed by fusion of the male and female pronucleus in an impregnated ovum. See the Note under Pronucleus. Segmentation of the ovum, or Egg cleavage (Biol.), the process by which the embryos of all the higher plants and animals are derived from the germ cell. In the simplest case, that of small ova destitute of food yolk, the ovum or egg divides into two similar halves or segments (blastomeres), each of these again divides into two, and so on, thus giving rise to a mass of cells (mulberry mass, or morula), all equal and similar, from the growth and development of which the future animal is to be formed. This constitutes regular segmentation. Quite frequently, however, the equality and regularity of cleavage is interfered with by the presence of food yolk, from which results unequal segmentation. See Holoblastic, Meroblastic, Alecithal, Centrolecithal, Ectolecithal, and Ovum. Segmentation sphere (Biol.), the blastosphere, or morula. See Morula.

Meaning of Segmentation nucleus from wikipedia

- AK, Pillai VP, Jayasree RS (September 2013). "Segmentation and volumetric analysis of the caudate nucleus in Alzheimer's disease". European Journal of...
- Cacciola, Alberto (2021). "Ventral intermediate nucleus structural connectivity-derived segmentation: anatomical reliability and variability". NeuroImage...
- high and segmentation may vary with race. A 1996 study performed in the United States found that blacks have a greater neutrophil segmentation than whites...
- The septal nuclei play a role in reward and reinforcement along with the nucleus ac****bens. In the 1950s, Olds & Milner showed that rats with electrodes...
- arrangement along the anterior-posterior axis. The earliest signs of segmentation appear during this phase with the formation of parasegmental furrows...
- and the relaxation of the muscle wall below the point of stimulation. Segmentation contractions are the contractions in intestines carried out by the smooth...
- food throughout the gastrointestinal tract, including peristalsis, and segmentation contractions. Gastric activity involved in digestion is divided into...
- segmental structure: Onset (optional) Rhyme (obligatory, comprises nucleus and coda): Nucleus (obligatory) Coda (optional) Both onset and coda may be empty...
- together. In replication, the viral pdsDNA is converted in the host cell nucleus to covalently-closed-circular DNA (cccDNA) by the viral polymerase.[citation...
- possible combinations of medials (semivowels coming before the vowel), a nucleus vowel, and coda (final vowel or consonant). Diacritics are used to indicate...