According to InnerBody, the inner surface area of the human lungs measures between 80 and 100 square meters, which is comparable in size to half of a tennis court. The lungs are a pair of large, spongy organs that exchan... More »

Using the Mosteller formula, body surface area is calculated by taking the square root of a person's height in centimeters times his weight in kilograms divided by 3600, or BSA = SQRT([height (cm) x weight(kg)]/3600). Th... More »

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Surface anatomy is the study of the body's external features, such as the hands, the feet and the legs. Certain features are labeled as regions based on the bones or muscles they cover. For example, the mastoid region is... More »

Alveoli have a large surface area in order to rapidly exchange gases, which is the primary function of the lungs. There are approximately 300 million alveoli found inside the lungs. More »

The heart is the muscular organ situated in between the lungs, behind the sternum and slightly tilted towards the left side of the breastbone. Rhythmic muscular contractions activate the heart to pump blood through a sys... More »

The functions of human organs of speech are to produce sounds that are perceived as speech by pushing the air from the lungs up and, while modifying it by various means, out of the mouth. Organs of speech produce consona... More »

Although the curvature of the Earth's surface causes objects to be out of sight within 3.1 miles, the farthest object visible to the naked eye is the Andromeda galaxy, located 2.6 million light-years away from Earth. The... More »