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The role of T cells in the Immune system

MHC class I molecules present peptides which bind to the T cell receptors of cytotoxic T lymphocytes. These are found on the cell surface of almost all nucleated cells in the body which enable the T cells to distinguish between “self” and foreign antigens. This…

CellImmune System1 Page

The anatomical variations

Anatomical variations in the nose and paranasal sinus region are common. local anatomic variations including deviated nasal septum, Concha bullosa, paradoxical middle turbinate,uncinate deviation,agger nasi and others may be the source of middle meatal obstruction and subsequent rhinosinusitis. Deviated nasal septum Deviated nasal septum or…

CellHuman Anatomy2 Pages

Types of Nerve Cell

Nerve cells also are known as neurons transmit and receive electro nerve impulses. They can be found all over the body and are connected all over the body, but can mostly be found near around the Central Nervous System. They are connected to other neurons…

CellNervous System2 Pages

The Fundamental Techniques used to induce Tetraploidy

There are three fundamental techniques to induce tetraploidy in vitro. First technique is that a nucleus (2n) is fused to a fertilized ovum surgically. The repeatably uniform tetraploid embryos were produced by this method but only 9–15% of the injected blastocysts survived due to surgical…

BiologyCell1 Page

The role of autophagy in the regulation of JA-regulated defense genes

Necrotrophic pathogens kill host cells before colonizing them (van Kan, 2006). Unlike gene-for-gene resistance to biotrophic pathogens, plant resistance to necrotrophic pathogens is often polygenic, but so far only a few genes involved in plant resistance to necrotrophic pathogens have been identified (Mengiste et al.,…

CellGenetics1 Page

The microtubule cytoskeleton

The microtubule cytoskeleton also participates in the maintenance of epithelial planar polarity by modulating mitotic spindle orientation. The organization of epithelial cells to form hollow organs with a single lumen entails that each cell divides symmetrically within the epithelial plane, so that both resulting daughter…

CellMicrobiology1 Page

Similarities between Human System and Hospital

The Nucleus is very similar to a Hospital Manager because the nucleus controls the activities of the cell, such as growth it also holds inside important information like DNA and the Nucleolus. Hospital managers have a similar job. They work with all parts of the…

CellHospital2 Pages

Movement of Solute Molecules across the Cell Membrane

Movement of solute molecules across the cell membrane into regions of higher concentrations or against a concentration gradient, with the use of metabolic energy input is known as active transport. Binding protein transport systems or ATP-binding cassette transporters (ABC transporters) is a good example of…

BiologyCell1 Page

The cell cycle and the regulators controlling this process

“ The cell cycle is the process in which a cell goes through leading to the duplication of its DNA and division to produce two daughter cells. It follows a cyclical structure that includes interphase and mitosis. The interphase is composed of three sub sets,…

CellDna1 Page

Direct and Indirect Anti-globulin Test

In 1945 the antiglobulin test was introduced by R.R. Coombs. The test was used to test and detect the non-agglutinating antibodies of the red blood cells or the sensitized red cells. Direct antiglobulin test DAT is used to test C3 or 1gG which is bound…

BiologyCell1 Page