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Where is the first site of absorption of nutrients into your blood stream?
Wiki User
∙ 11y ago
Essentially absorption begins as soon as the food enters the mouth, through the use of amylase which is present in the saliva. However, the main function of the mouth and stomach is both mechanical and chemical digestion, and so the major site of nutrient absorption is in the small intestine.
The small intestine is highly adapted to maximize the nutrients in the blood stream; it has a massive surface area which is increased by two factors:
1. the presence of villi, which are small finger-like projections into the lumen of the small intestine, and
2. the presence of microvilli, which looks like a brush boarder along the cells of the small intestine.
The duodenum actually doesn't contribute that much to digestion, but rather digestion, through the secretions coming from the pancreas and bile duct through the major and minor duodenal papillae.
Finally, nutrients are absorbed into the bloodstream through the portal circulation, formed by the union of the splenic and greater mesenteric veins.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoplease answer it quick as we r in a science lesson luv chloe and Lauren xox
Wiki User
∙ 9y agoin the Small intestine
Nutrients are transferred into the blood in the small intestine.
Wiki User
∙ 10y agoNutrients are absorbed in the body's blood stream by way of tiny capillaries along the digestive tract.
Wiki User
∙ 12y agoNutrients are absorbed in capillaries of villi of intestine .
Wiki User
∙ 12y agomost of it happens in the small intestine
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How An infection spreading by way of the lymphatic system from the vermiform appendix first enters the blood stream at the?
it first enters the blood stream at the left brachiocephalic vein (at junction of the left subclavian vein and the left internal jugular vein)
Why is the small intestines the main part of the digestive system?
The small intestines are important in the digestive system. There are small finger like structures in the Small intestines called villi, these villi extract the nutrients and take it into the blood stream. Without the small intestines you would not be able to extract nutrients from the food.
How does the epidermis receive its blood supply?
All epithelial tissue requires oxygen and nutrients to be delivered from the deeper tissues. In the case of the epidermis, this deeper tissue is the DERMIS. Are close enough to the blood supply in the dermis to get the adequate oxygen and nutrients for survival.
What happens if intact proteins are transported across the villus epithelium?
Absorption occurs when intact proteins are transported across the villus epithelium. This process occurs through either diffusion or active transport.
Location and function of fat pad?
the first function of a fat pad is cushioning and the second is shock absorption. You can find them in Synovial joints.
What is primary absorption?
If your asking about primary absorption in digestion and the absorption of nutrients into the body, then primary absorption is the first (primary) place in the body where nutrients are absorbed. In humans this takes place in the small intestines after the food has been broken down in the stomach and passed on to the small intestine.
What is the first organ to receive nutrients after absorption?
The liver is the first organ to receive nutrients that are absorbed from the GI tract. It is the 'gatekeeper' and is responsible for filtering out possible toxins before they reach delicate tissues such as the brain. The hepatic vein takes blood from the liver to the heart.
What does the small intestine do in the human body?
The digestion and the absorption of nutrients. You can live without a large intenstine, but not without a small intestine! The small intestine is responsible for most of your food digestion and all of your food absorption. The duodenum is the first section and is about a foot long. It digests all types of food (carbohydrates, proteins, and fats) with the help of pancreatic juices. The duodenum, along with the jejunem and the ileum, absorb the nutrients from the digested food and transfer them into the blood stream. You can live without your stomach, but you cannot live without your small intestines.
What is the first organ to receive nutrients?
The liver receives the bulk of the water soluble nutrients.Little absorption occurs in the oral cavity, esophagus, and stomach. The small and large intestines are where most absorption takes place. The blood flows from the intestines back to the liver via the portal vein.
What are two functions of the digestive system?
The first of the two functions of the digestive system is to break down nutrients. The second function is the absorption of nutrients.
Nutrients are absorbed into the bloodstream through small finger-like nodules on the wall of the?
Villi on the wall of the small intestine absorb nutrients into the bloodstream.
What is the function of the human body intestines?
The small intestine is responsible for most of your food digestion and all of your food absorption. The duodenum is the first section and is about a foot long. It digests all types of food (carbohydrates, proteins, and fats) with the help of pancreatic juices. The duodenum, along with the jejunem and the ileum, absorb the nutrients from the digested food and transfer them into the blood stream. You can live without your stomach, but you cannot live without your small intestines.
How An infection spreading by way of the lymphatic system from the vermiform appendix first enters the blood stream at the?
it first enters the blood stream at the left brachiocephalic vein (at junction of the left subclavian vein and the left internal jugular vein)
Before entering the heart blood from the intestines must first pass through the?
The de oxygenated blood from the intestine is rich in nutrients as the small intestine is the organ that involves in absorption of the digested substances. The blood from intestine passes into the liver via the hepatic portal vein. This blood is transported through the liver as the liver regulates the quantity of substances in blood. Then the blood from the liver is taken back to the right atrium of the heart through the hepatic vein.
Where is the blood coming from the body first received?
Blood is produced in the marrow of your bones. It needs energy and water and nutrients to accomplish this. Energy comes from the food and nutrients you eat. Water is a must for the human body.
Why is the small intestines the main part of the digestive system?
The small intestines are important in the digestive system. There are small finger like structures in the Small intestines called villi, these villi extract the nutrients and take it into the blood stream. Without the small intestines you would not be able to extract nutrients from the food.
What absorbes food and pass it into blood vessels from the ileum?
In the Small Intestine there are three section that are responsible for digestion and nutrient absorption. The first section is called the duodenum. The duodenum is manly responsible for the digestion of food. The second section is called the jejunum. The jejunum is the primary site of nutrient absorption. The third section is called the ileum. The ileum is the section that absorbs the nutrients that the jejunum missed.
