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.
Keratinocytes = cells of the skin producing keratin; so called prickle or MALPIGHIAN cells. Stratum basale = basal layer. is, together with the stratum spinosum, responsible for cell reproduction in this layer; this layer consists of tall cylindrical cells (Epitheliocytus basalis) and melanocytes.tratum spinosum = prickle cell layer. is multi-layered and consists of polygon-shaped cells joined together by desmosomes (visible in the electron microscope as thickening of the cell membrane). In this layer the keratinocytes are joined by tonofibrils (a filament of proteins) like a network.