What does it mean when a cell cleaves?
(kleevd) Having to do with the appearance of cells when viewed under a microscope. The nucleus of cleaved cells appears divided or segmented.
What is non cleaved cell?
Antiquated term describing follicular (nodular) or diffuse non-Hodgkin lymphomas that are composed of a mixture of large cells: large cleaved cells, with irregular nuclei without visible nucleoli; and large non-cleaved cells (centroblasts), having a rounder nucleus with two to three small, peripherally placed nucleoli …
What is the function of cleavage?
During cleavage, the cells divide without an increase in mass; that is, one large single-celled zygote divides into multiple smaller cells. Each cell within the blastula is called a blastomere. Figure 1 (a) During cleavage, the zygote rapidly divides into multiple cells without increasing in size.
What is the purpose of the cleavage furrow?
To complete the cell cycle, the cleavage furrow draws the plasma membrane toward the cell center, pinching the cytoplasm into two lobes that are subsequently separated into two cells. The position of the cleavage furrow is induced by the mitotic spindle during early anaphase.
What does cleave mean chemistry?
Bond cleavage, or bond fission, is the splitting of chemical bonds. This can be generally referred to as dissociation when a molecule is cleaved into two or more fragments.
What does cleaved mean in biology?
From Wikipedia, the free encyclopedia. In developmental biology, cleavage is the division of cells in the early embryo. The process follows fertilization, with the transfer being triggered by the activation of a cyclin-dependent kinase complex.
What is a Centrocyte?
A centrocyte generally refers to a B cell with a cleaved nucleus, as may appear in e.g. follicular lymphoma. Centrocytes are B cells that are found in the light zones of germinal centers.
What are small cleaved and large cleaved cells?
Cleaved cells are typical of follicular small cleaved cell lymphoma, an intermediate grade lymphoma which, despite widespread disease at the time of diagnosis, has a relatively prolonged and non-aggressive course. Large cleaved cells are typical of immunoblastic lymphoma (IL) Segen’s Medical Dictionary. © 2012 Farlex, Inc.
What are cleaved lymphoma cells?
Cleaved cells are typical of follicular small cleaved cell lymphoma, an intermediate grade lymphoma which, despite widespread disease at the time of diagnosis, has a relatively prolonged and non-aggressive course.
What is follicular large cleaved cell (centrocytic) lymphoma?
Follicular large cleaved cell (centrocytic) lymphoma: an unrecognized variant of follicular lymphoma Hum Pathol. 2018 Feb;72:180-190.doi: 10.1016/j.humpath.2017.11.002.
What are clefts in the nuclear membrane?
a cell with single or multiple clefts in the nuclear membrane. A malignant lymphocyte with one or more deep clefts, linear infoldings of the nucleus, condensed chromatin and indistinct nucleoli.