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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.

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1y ago

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What is the difference between buccal and sublingual absorption?

Buccal absorption refers to the entire mucus membrane of the mouth, whereas sublingual absorption is specific to the heavily vascular area below the tongue, the most rapid and efficient area of administration through the mouth.


Which is the pathway of oxygen to the lungs?

Oxygen enters the body through the mouth or nose, passes through the trachea (windpipe), then enters the bronchial tubes in the lungs. Within the lungs, the oxygen is absorbed by tiny air sacs called alveoli and then enters the bloodstream to be transported to cells throughout the body.


Where does oxygen go after entering nose of mouth?

After entering the nose or mouth, oxygen travels down the windpipe (trachea) and then into the lungs. In the lungs, oxygen is exchanged for carbon dioxide in the alveoli, small air sacs where oxygen is taken up by red blood cells and transported to the rest of the body.


What does air or co2 have to pass through to get breathed out?

Air or CO2 must pass through the respiratory system, specifically the lungs. During exhalation, these gases move out of the lungs and are expelled from the body through the nose or mouth.


Does the mouth absorb?

No, the mouth does not absorb nutrients. Nutrient absorption primarily occurs in the small intestine, where the nutrients from food are broken down and absorbed into the bloodstream for use by the body. The mouth's main function is to begin the process of digestion by breaking down food into smaller pieces through chewing and mixing with saliva.