| adhering junction | <cell biology> A type of junction between cells forming tissues that are subjected to stretching and pulling, such as the skin. This type of junction provides very tight contact between adjacent cells and allows the cells to fuction as a unit. Belt desmosomes are attachment sites that circle the cell, and spot desmosomes are small points of attachment across the cells surface. (15 Jan 1998) |
|---|---|
| gap junctions | Connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of connexins, the family of proteins which form the junctions. (12 Dec 1998) |
| impermeable cell junctions | <cell biology> Specialised intercellular junction in which the two plasma membranes are separated by only 1-2nm. Found near the apical surface of cells in simple epithelia, forms a sealing gasket around the cell. Prevents fluid moving through the intercellular gap and the lateral diffusion of intrinsic membrane proteins between apical and baso lateral domains of the plasma membrane. (18 Nov 1997) |
| intercellular junctions | Direct contact of a cell with a neighboring cell. most such junctions are too small to be resolved by light microscopy, but they can be visualised by conventional or freeze-fracture electron microscopy, both of which show that the interacting cell membrane and often the underlying cytoplasm and the intervening extracellular space are highly specialised in these regions. (12 Dec 1998) |
| tight junctions | Cell-cell junctions that seal adjacent epithelial cells together, preventing the passage of most dissolved molecules from one side of the epithelial sheet to the other. (alberts et al., molecular biology of the cell, 2nd ed, pg-22) (12 Dec 1998) |
| junctions | See: adherens junction, desmosome, gap junction, zonula occludens. (18 Nov 1997) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|