which structures of the small intestine increase the area of absorption
Answers
Answer:
VILLI
Explanation:
Villi: The folds form numerous tiny projections which stick out into the open space inside your small intestine (or lumen), and are covered with cells that help absorb nutrients from the food that passes through. Microvilli: The cells on the villi are packed full of tiny hairlike structures called microvilli.
Answer:
Villi: The folds form numerous tiny projections which stick out into the open space .
The structural features are:The inner surface of the small intestine is not flat but thrown into circular folds, which not only increase surface area but aid in mixing the food.It has a large number of finger - like projections called villi that increase surface area for absorption. Each of the epithelial cells in the surface of the villi has a brush border of microvilli that further increases the capacity of absorption by increasing the surface area and also secretes certain enzymes
Answer:The interior walls of the small intestine are tightly wrinkled into projections called circular folds that greatly increase their surface area. Microscopic examination of the mucosa reveals that the mucosal cells are organized into finger-like projections known as villi, which further increase the surface.
The inner lining of the small intestine has numerous villi and microvilli and also circular folds which increase the surface area for absorption. The villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body. Hence, The small intestine is designed for the digestion and absorption of nutrients, Which of the following greatly enhances the process large surface area provided by the circular folds, villi, and microvilli.So, the correct answer is 'Large surface area provided by microvilli.
The plicae circulares and villi & microvilli. Explanation: The major portion of digestion and absorption of ingested food occurs in the small intestine (approximately 80% of all major nutrient is absorbed here) . Small intestine (SI) is about 21 feet in length. So actually plenty of space. But to increase its capacity of absorption the wall of SI is thrown into a series of folds. These folds actually increases the surface area. These are called PLICAE.
Hint: An organ in the gastrointestinal tract where much of the final absorption of nutrients and minerals from food takes place in the small intestine or small bowel. It lies between the stomach and the large intestine and, through the pancreatic duct, obtains bile and pancreatic juice to help digestion.Complete answer: There are three distinct regions in the small intestine: the duodenum, jejunum, and ileum. The shortest duodenum is where preparation starts for absorption by small finger-like protrusions called villi. The jejunum is specialized for absorption by its enterocyte lining: small particles of nutrients that have been previously digested in the duodenum by enzymes. The main purpose of the ileum is to absorb vitamin B12, bile salts, and whatever digestive products the jejunum has not absorbed. There is a finger like projections called villi in the internal lining of the small intestine. The surface of the villi is lined with microvilli.
The small intestines are well adapted for absorbing nutrients during digestion by: being very long, having villi and microvilli that increase surface area, using muscular contractions to move and mix food, and receiving and housing digestive enzymes and bile that help the breakdown of food. • Long length The average length of the small intestines in an adult is around 23 feet. It takes food around 8 hours to .
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