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Which is the first part of the small intestine mainly responsible for the continuous breaking-down process?

Which is the first part of the small intestine mainly responsible for the continuous breaking-down process? Correct Answer Duodenum

The correct answer is ​Duodenum.

  • The small intestine is the longest part of the digestive system which extends from the stomach to the large intestine.
  • It is divided into three parts named duodenum, jejunum, and ileum.

Key Points

  • The main function of the small intestine is that it helps to complete the digestion of food and absorb nutrients.
  • Duodenum is the first part of the small intestine which is positioned between the stomach and the middle part of the small intestine, or jejunum.
  • Duodenum is largely responsible for the continuous breaking-down process.
  • The jejunum is the second part of the small intestine and the ileum is the last and longest part of the small intestine.
  • The jejunum and ileum are primarily responsible for the absorption of nutrients into the bloodstream.

Related Questions

Consider the following statements. A. The small intestine is highly coiled and shorter than the large intestine. B. Small intestine receives secretions from the liver and the pancreas. C. Liver is the largest gland in the body which secretes bile juice. D. The pancreatic juice acts on fats and change them into simpler forms The correct statements are
Between small and large human intestine which one is longer? A. Small intestine B. Large intestine C. Both are equal in length D. Depends on male or female
Which of the following statements are incorrect i) Large Intestine is a muscular organ ii) Food digestion takes place in large intestine. iii) Liver is largest external organ iv) Large intenstine diameter is greater than small intestine
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Assertion (A):All the protein in our food is digested in small intestine only. Reason (R):The protein - digesting enzymes from the pancreas are released into the small intestine.
Up to how much the microvilli in the small intestine increases the relative surface area of the small intestine?
Some small cubes of same height 7 cm but variable length and width are put inside a large cuboid of height 21 cm. Length and width of cuboid is 32 cm and 24 cm, respectively. Small cubes are put such that cubes at the bottom most layer is of similar base area; second layer contains all the cubes of similar base area and third layer have all the cubes of similar base area. Which of the following statement(s) given below is / are TRUE? A: If side of each small cubes at bottom most layer is 8 cm, then maximum number of small cubes that can be put at bottom most layer is 12. B: If maximum of 48 cubes can be put at second layer, then side of each cube at second layer is 6 cm. C: If side of each small cubes at third layer is 1.6 cm, then maximum number of small cubes that can be put at third layer is 300.
The accompanying image shows a large cube made of dark and white small sugar cubes. Small cubes of the diagonally arranged row of the bottom surface of the large cube, small cubes of the row with one face on the right-hand surface of the large cube, small cubes of the row with one face on the front surface of the large cube, and small cubes of the column with one face on the top of large cube surface are all dark. Select the number of small white cubes of the large cube.
Which one of the given responses would be a meaningful order of the following? 1. Esophagus, 2. Stomach, 3. Large Intestine, 4. Mouth, 5. Small Intestine, 6. Rectum
Match the following (a) Small Intestine (i) Bile Juice (b) Large Intestine (ii) Acidic Medium (c) Stomach (iii) Absorption of main food nutrients (d) Liver (iv) Egestion