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.
Ear Infection. Young children are prone to ear infections because of their small auditory tubes. These tubes connect the ears to the throat, and they may get blocked when a cold causes inflammation. This traps fluid inside the middle ear, behind the eardrum, allowing germs to breed.