Henry Bessemer was an inventor and engineer from England. Not only  did he develop the Bessemer process for steel manufacturing, but he  also designed a machine that could mâ¦ake bronze powder.
The head-tilt/chin-lift is the primary maneuver used in any patient in whom cervical spine injury is not a concern. The simplest way of ensuring an open airway in an unconscious patient is to use a head-tilt/chin-lift technique, thereby lifting the tongue from the back of the throat.
include supine, lithotomy, lateral, prone and sitting. SUPINE The supine position is used for the majority of surgical procedures. ine positioning has an effect on ventilation by leading to a significant reduction in functional residual capacity (FRC) in the anaesthetised patient. As