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Finger-like extensions increasing surface area in small intestine?
Wiki User
∙ 11y ago
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThey are called papillae
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The small intestine is covered in millions of villi what are villi and what is their job?
Villi are fingerlike projection from a surface and in the intestine they are one cell thick with blood vessels and lacteal. The funciton is to increase the surface area of the intestine and so increasing the ammount of absorption.
What has tiny fingerlike projects that increase a cells absorption capabilities by increasing its surface area?
Villi are tiny fingerlike projects that increase a cells absorption capabilities by increasing its surface area.
Where does most of the water absorption during digestion take place?
The intestines, because what isn't absorbed comes out as a bowel movement.the small intestine has small finger like structures called villi which absorb the nutrients.the fingerlike structures help in increasing the surface area
Which of the following modifications increases surface area in the small intestine with fingerlike extension of the mucosa?
They are called villi. And on their surfaces they have even smaller ones called microvilli.
What are fingerlike projections of cytoplasm?
Fingerlike projections of cytoplasm and known as pseudopod(s). Pseudopd organisms are typically found on in the microscopic subkingdom of Protozoa( genus Amoeba).
What are the fingerlike projections that greatly increase the surface are of cells?
stereocilia
What slender extensions of the plasma membrane that increase its surface area?
Microvilli:In some cells the membrane is thrown into minute fingerlike projections or folds called microvilli which greatly increase the surface area of the cell available for absorption or passage of materials and for the binding of signaling molecules.
How do villi of the small intestine increase the rate of nutrients absorption?
By increasing the surface area of the intestinal wall.
Where are microvilli found?
Tiny "fingerlike" projections with actin filaents at the core of each to stiffen it and are not motile. Numerous microvilli form a brush border on cells of the small intestine/kidneys to allow absorption and secretion of large numbers of molecules.
Why do you have 20 feet of small intestine?
The small intestine is the main digestive organ of the human body. It is where digestion is completed and nearly all absorption of nutrients into the blood stream occurs. Because it has such a big job to do, it needs a large surface area so that more nutrients can be absorbed at any one time. This surface area is provided mainly by its length. The walls of the small intestine are also covered in 'fingerlike' projections called villi, on which are more tiny projections called microvilli. These projections also significantly increase the surface area of the small intestine, to allow a faster rate of absorption.
Why is it important to increase surface area in the small intestine?
Millions of tiny hair-like protrusions, called villi, line the inside of the small intestine. They vastly increase the surface area of the intestines, to maximise diffusion of nutrients into the bloodstream. In fact, there are even smaller micro-villi covering the villi, to increase the absorption capacity even further! A constant supply of blood ensures a steep concentration gradient is maintained. This is a crucial factor for allowing as great an uptake of nutrients as possible.
What is the advantage of the increased surface area in the small intestine?
Simply to increasing the efficiency of digestion and absorption.
