The laptop doesn't tell the printer to print. The laptop tells the router to print, then the router tells the printer to print. You will need to plug a computer up to the printer initially to set it up. Once the printer has been initialized and added to your network, you can unplug the computer and use the printer.
The alveolar epithelium comprises two main cell types: the alveolar type I and alveolar type II cell. The type I cell is a complex branched cell with multiple cytoplasmic plates that are greatly attenuated and relatively devoid of organelles; these plates represent the gas exchange surface in the alveolus.
Their function is of major importance in the secretion of pulmonary surfactant, which decreases the surface tension within the alveoli. They are also capable of cellular division, giving rise to more type I alveolar cells when the lung tissue is damaged.These cells are granular and roughly cuboidal.lveolar cells, or pneumocytes are cells lining the alveoli of the lungs. Two types of alveolar cell exist: type I alveolar cells and type II alveolar cells.