Answer :
Final Answer:
The typical length of the small intestine in an adult human ranges from 5 to 7 meters (approximately 16 to 23 feet), and 7.5 meters exceeds this range. Therefore correct answer is 7.5m long.
Explanation:
The small intestine is a vital organ in the digestive system responsible for the absorption of nutrients from food. However, option B is not correct because the small intestine is not about 7.5 meters long. In reality, the length of the small intestine in an adult human typically ranges from 5 to 7 meters (or approximately 16 to 23 feet), depending on factors like age and individual variation.
Option A, stating that the small intestine is about 1.5 meters long, is also incorrect. This length significantly underestimates the actual size of the small intestine.
Options C and D are both correct statements about the small intestine. Its walls secrete digestive juices, including enzymes and mucus, to aid in the digestion and absorption of nutrients. Additionally, the small intestine receives secretions from the liver in the form of bile, which is essential for the digestion and absorption of fats.
In summary, option B is the incorrect statement among the choices provided because the small intestine is not approximately 7.5 meters long but rather falls within the range of 5 to 7 meters in length.
Learn more about small intestine:
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