Hypoxia, or lack of sufficient oxygen, is the single most common cause of cellular injury (see Figure 2-8). The other options are not a commonly observed as is the correct option. PTS: 1 REF: Page 56 31. During cell injury caused by hypoxia, sodium and water move into the cell because: a.
Boys develop ear infections more often than girls, as do kids with a family history of ear infections. They're also more common during the winter season, when lots of people get upper respiratory tract infections or colds.
Bacteria grow in the fluid trapped in the middle ear, and a middle ear infection -- and, for the child, pain -- result. The anatomical conditions that make kids particularly susceptible to middle ear infections change as a child ages, said Dr. Sina Nasri, a Las Vegas ear, nose and throat specialist.