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Nutrient exchange is a continuous cycle, constantly supplying the body with oxygen and nutrients while removing carbon dioxide and metabolic waste.
Red blood cells are the cells in the blood that carry oxygen from the lungs to the body tissues through blood pumped by the heart. As they travel away from the heart, they traverse smaller and smaller arteries, finally arriving at the collections of microscopic blood vessels called capillaries.
Capillaries contain a high concentration of oxygen and nutrients, while the surrounding tissues contain a lower concentration. Through a process called diffusion, these particles leave the capillaries and enter the body's tissues.
Conversely, the body's tissues contain high concentrations of carbon dioxide and metabolic waste, while the capillaries contain a lower concentration. Waste products diffuse from the tissues into the capillaries and from there are carried by the venous system back toward the heart.
The waste products are eventually eliminated from the bloodstream by the liver, kidneys, and lungs.
Reviewed ByReview Date: 10/10/2008
Larry A. Weinrauch, MD, Assistant Professor of Medicine, Harvard Medical School, and Private practice specializing in Cardiovascular Disease, Watertown, MA. Review provided by VeriMed Healthcare Network.
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What vessels is responsible for gas and nutrient exchange with each of the body's cells?
The capillaries are responsible for gas and nutrient exchange with each of the body's cells. These tiny blood vessels have thin walls that allow for the exchange of oxygen, carbon dioxide, and nutrients between the blood and the surrounding tissues.
Gas and nutrient exchange occur in the?
Gas exchange occurs in the alveoli of the lungs, where oxygen from inhaled air diffuses into the bloodstream and carbon dioxide diffuses out. Nutrient exchange occurs in the small intestine, where nutrients from digested food are absorbed into the bloodstream to be transported to cells throughout the body.
What type of vessel does nutrient exchange take place?
Nutrient exchange takes place in small blood vessels called capillaries, which have thin walls that allow for the exchange of gases, nutrients, and waste products between the blood and surrounding tissues.
The organ responsible for nutrient exchange between a human mother and a fetus is called the?
The placenta
Capillaries exchange food oxygen and what?
They exchange water, oxygen and carbon dioxide, as well as nutrient and waste chemical substances between blood and surrounding tissues.
Is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake waste elimination and gas exchange?
placenta
What does the placenta do for the reproductive?
The placenta connects a developing fetus to the wall of the uterus, which allows gas exchange, nutrient absorption, and waste elimination
What carries fetal blood to the placenta?
The umbilical vein carries oxygenated blood from the fetus to the placenta for nutrient and oxygen exchange.
What are the two functions of a placenta?
One of them is to pass on essential nutrients from the mother to the baby. Nutrient supply. Waste elimination. (The third function is gas exchange.)
What are two functions of the placenta?
One of them is to pass on essential nutrients from the mother to the baby. Nutrient supply. Waste elimination. (The third function is gas exchange.)
What connective tissue is not vascularized?
Cartilage is a connective tissue that is avascular, meaning it lacks blood vessels. It relies on diffusion for nutrient exchange and waste removal.
What are capillaries and what are their functions?
Capillaries are the smallest blood vessels. They connect arteries and veins. They are the site of gas, waste, and nutrient exchange between the blood and the body tissues.
