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What are the only two substances that are absorbed across the stomach's mucosal epithelium?
Alcohol and aspirin are the only two substances that can be absorbed directly across the stomach's mucosal epithelium without needing to enter the bloodstream through the small intestine. This is because these substances are lipid-soluble and can pass through the cell membranes of the stomach lining.
Is fat absorbed directly into the bloodstream from the small intestine If Not Where is it absorbed?
Fats are absorbed in the small intestine, along with carbohydrates and proteins.
What nutrients are absorbed from the digestive tract directly into the blood?
Nutrients such as carbohydrates, proteins, fats, vitamins, and minerals are absorbed from the digestive tract directly into the blood.
Where is ethanol absorbed?
Ethanol is primarily absorbed in the small intestine, but it can also be absorbed in the stomach. Absorption occurs through passive diffusion directly into the bloodstream, leading to its distribution throughout the body.
What substance cannot be absorbed directly into the blood?
Large molecules, such as proteins and polysaccharides, cannot be absorbed directly into the blood because they are too big to pass through the walls of the intestine. Instead, they need to be broken down into smaller molecules before they can be absorbed.
The clotting process in the blood directly involves all these substances EXCEPT?
The clotting process in the blood directly involves substances to include fibrin, platelets and fibrinogen. The exception is an anticoagulant.
Which substances produced in the body are directly responsible for the rejection of a?
Antibodies
Why does alcohol absorb faster than food?
Alcohol is a liquid that is absorbed directly into the blood stream from the stomach. Food is absorbed through the intestines, but it must be broken down first. That is why alcohol is absorbed faster.
Why is it that food substances taken in by animals cannot be used directly?
Food substances taken in by animals need to be broken down into smaller molecules through the process of digestion. This allows nutrients to be absorbed and used by the body for energy, growth, and repair. Without digestion, the body would not be able to effectively extract the necessary nutrients from food.
What is the relationship between the electric force and potential in a system with spherical symmetry?
In a system with spherical symmetry, the electric force is directly related to the potential. The electric force is the gradient of the electric potential, meaning that the force is stronger where the potential changes more rapidly. This relationship helps to describe how charges interact in a spherical system.
Generally absorption from the lungs is greater than from the mouth why?
Absorption from the lungs is generally greater than from the mouth because the lungs have a large surface area with a rich blood supply, allowing for efficient absorption of substances directly into the bloodstream. In contrast, absorption from the mouth is limited by the mucous membranes and the stomach's acidic environment, which can break down and degrade substances before they can be absorbed.
How can one gets food when one gullet is directly connected to the small intestine?
Nutrients are absorbed into the body along the entire length of the digestive tract, not only through the stomach or large intestine. Shortening that tract (as is done in bypass surgeries) only lessens the amount that can be absorbed by lessening the amount of surface the food goes through. Anal-administration of substances works because of this fact.
