in the small intestine absorb nutrients from food and pass them on to the rest of the body.a) Villib) Blood cellsc) Haustrad) Sub-mucosa
Question
in the small intestine absorb nutrients from food and pass them on to the rest of the body.
a) Vill
b) Blood cells
c) Haustra
d) Sub-mucosa
Solution
Sure, let's break down the question step by step:
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Understanding the Question: The question is asking which structure in the small intestine is responsible for absorbing nutrients from food and passing them on to the rest of the body.
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Analyzing the Options:
- a) Villi: These are small, finger-like projections that line the walls of the small intestine. They increase the surface area for absorption and contain blood vessels that help in transporting absorbed nutrients.
- b) Blood cells: These are cells found in the blood, such as red blood cells and white blood cells. They are not directly involved in the absorption of nutrients in the small intestine.
- c) Haustra: These are pouches found in the large intestine, not the small intestine. They help in the movement and absorption of water and salts, but not nutrients from food.
- d) Sub-mucosa: This is a layer of tissue in the gastrointestinal tract, located beneath the mucosa. It contains blood vessels, nerves, and glands, but it is not directly responsible for nutrient absorption.
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Conclusion: Based on the analysis, the correct answer is:
- a) Villi
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