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Ethanol is most commonly ingested by mouth, [2] but other routes of administration are possible, such as inhalation, enema, or by intravenous injection. [4] [78] With oral administration, the ethanol is absorbed into the portal venous blood through the mucosa of the gastrointestinal tract, such as in the oral cavity, stomach, duodenum, and ...
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
In others, once potential nutrients or food is inside the organism, digestion can be conducted to a vesicle or a sac-like structure, through a tube, or through several specialized organs aimed at making the absorption of nutrients more efficient. Schematic drawing of bacterial conjugation. 1-Donor cell produces pilus.
Enteral/enteric administration usually includes oral [6] (through the mouth) and rectal (into the rectum) [6] administration, in the sense that these are taken up by the intestines. However, uptake of drugs administered orally may also occur already in the stomach , and as such gastrointestinal (along the gastrointestinal tract ) may be a more ...
Enteral administration may be divided into three different categories, depending on the entrance point into the GI tract: oral (by mouth), gastric (through the stomach), and rectal (from the rectum). (Gastric introduction involves the use of a tube through the nasal passage or a tube in the belly leading directly to the stomach .
Americans may be slow to absorb the bad news about alcohol, but the science is pretty darn clear: From cancer to brain health, sleep health, and gut health, no amount is truly *good* for you ...
Amphibians and aquatic animals which live in freshwater do not need to drink: they absorb water steadily through the skin by osmosis. [4] [16] Saltwater fish, however, drink through the mouth as they swim, and purge the excess salt through the gills. [16] Saltwater fishes do drink plenty of water and excrete a small volume of concentrated urine.
Most are reserved for people with a body mass index (BMI) of at least 30 (which is considered obesity) or at least 27 with weight-related health concerns like type 2 diabetes, high blood pressure ...