O air-filled cavities that secrete mucus to keep the nose moist and remove bacteria.
False because if she rarly exercises than she would not be burning the extra calories she gained and there fore would be gaining an unhealthy amount of weight.
The most common site are the skin overlying the sacrum, coccyx, heels or the hips, but other site such as the elbows,knees, ankles or the back of the cranium can be affected.
