Most nutrients enter the circulatory system through the small intestine. After digestion, nutrients are absorbed by the intestinal villi and then transported into the bloodstream. From there, they travel to the liver via the hepatic portal vein for processing and distribution to the rest of the body. This efficient system ensures that essential nutrients reach cells and tissues where they are needed.
Nutrients from the digestive system enter the circulatory system. From there, they are transported to all body cells.
The nutrients of food are absorbed at the intestine from where they reach the organs and tissues through the circulatory system.
The capillaries are the site in the circulatory system where nutrients enter and wastes leave the tissues. The thin walls of the capillaries facilitate this diffusion.
Absorption is the process that takes nutrients through the small intestine wall. These nutrients then enter the circulatory system, which carries the nutrients to all body cells.
Products of carbohydrate digestion and protien digestion move through brush border cells, diffuse through the interstitial fluid inside the villus, then enter a capillary. Products of fat digestion also cross the brush border cell and interstitial fluid, but they enter lymph vessels which eventually carry them to the blood.
Most nutrients are just dissolved in the plasma of the blood. They are transported to the cells when the heart pumps the blood through arteries, arterioles and capillaries. Nutrients diffuse through the walls of capillaries and enter cells.
The lung or pulmonary system is the essential respiration organ that makes it possible for oxygen to enter the circulatory system.The alveoli struture makes it possible for oxygen to enter the circulatory system.
blood septicemia.a grave condition .
The small intestine is the site of most chemical digestion and absorption in the digestive tract. During absorption, nutrients enter the bloodstream, and the circulatory system can then transport these nutrients to all body cells.
Three examples would be: -digestive system, where nutrients enter the bloodstream -endocrine system, where hormones enter the bloodstream -immune system, where blood, organs, tissues, cells, and cell products work together to respond to dangerous organisms that enter the body. (taken directly from http://www.factmonster.com/ipka/A0774536.html)
Intravenous fluids enter the body through a needle inserted into a vein. Once in the bloodstream, the fluids are absorbed and distributed throughout the circulatory system by the heart pumping the blood to all parts of the body.
Nutrients from food and beverage is absorbed inside the walls of the small intestine. As we digest our food, all nutrients are taken in the small intestine and would most probably then enter our bloodstream from there on.