While pulmonary ventilation is the process by which oxygen enters and carbon dioxide exits the alveoli, respiration is the process by which oxygen and carbon dioxide diffuse in and out of the blood. Respiration is also referred to as gas exchange, and it occurs in two areas of the body.
Low BUN levels are not common and are not usually a cause for concern. They may be seen in severe liver disease, malnutrition, and sometimes when a person is overhydrated (too much fluid volume), but the BUN test is not usually used to diagnose or monitor these conditions.
A 14 gauge, 5/8-inch barbell or stud is the most commonly used tongue ring size. When people get their tongue pierced, they will usually get a 14 gauge, 7/8-inch straight barbell used for the initial piercing. It is not until the tongue has had time to heal that someone should consider switching...
When inflammation occurs, chemicals from the body's white blood cells are released into the blood or affected tissues to protect your body from foreign substances. This release of chemicals increases the blood flow to the area of injury or infection, and may result in redness and warmth.