Answer :
Final answer:
The small intestine is approximately 3.05 meters (10 feet) long in a living person and can be nearly twice as long in a cadaver; for living adults, the average length is about 4.6 meters (15 feet) for females and 6.9 meters (22 feet 8 inches) for males, hence the correct answer is C. 15 feet.
Explanation:
The Length of the Small Intestine
When it comes to the small intestine, its length is quite impressive when stretched out. The small intestine is the primary digestive organ where most digestion and absorption take place. In a living person, the small intestine is about 3.05 meters (10 feet) long, however, this length can extend to nearly double in a cadaver due to the loss of muscle tone. In terms of living adults, the average length can be estimated at 4.6 meters (15 feet) for females and 6.9 meters (22 feet 8 inches) for males.
The diameter is relatively smaller compared to the large intestine, which is why it is called 'small'. Nevertheless, the small intestine has an enormous surface area provided by its folds and projections, making it efficient at absorbing nutrients. So, the correct answer to how long the small intestine is when stretched out is C. 15 feet, considering the average living person.
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