Single function switches are the most commonly used adaptive switches. This type of switch performs one function (i.e., on/off) this switch has only one function - on or off. The switch may only be in one of the states at any one moment in time. Multiple function switches may perform two or more functions.
Echinocytes and keratocytes should be considered in the differential diagnosis of spur cell anemia. Echinocytes or burr cells are spiculated red blood cells with uniform, narrow, spikelike surface projections. Spur cells have fewer spicules, and the spicules vary more in size than echinocytes. Keratocytes are acanthocytelike cells with bizarre shapes and horny projections. Differential Diagnoses.
Dendritic cells are also proving to be major adjuvants in cancer vaccine research. Natural killer cells (NK cells) are a type of cytotoxic T-cell that are not specific for one cancer cell type, as are the tumor specific cells produced in response to dendritic cells.riginally NK cells were thought to simply attack cancer cells when they find them and not require activation by finding a specific cancer cell marker, hence the name natural killer cells. We now know that they are activated by lack of a cell marker that identifies the cell as âselfâ that is normal to the body.