Search results
Results from the WOW.Com Content Network
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. The process of digestion has three ...
Gastrointestinal physiology is the branch of human physiology that addresses the physical function of the gastrointestinal (GI) tract. The function of the GI tract is to process ingested food by mechanical and chemical means, extract nutrients and excrete waste products. The GI tract is composed of the alimentary canal, that runs from the mouth ...
Human food. Human food is food which is fit for human consumption, and which humans willingly eat. Food is a basic necessity of life, and humans typically seek food out as an instinctual response to hunger; however, not all things that are edible constitute as human food. Humans eat various substances for energy, enjoyment and nutritional support.
Digestion is the breakdown of large insoluble food compounds into small water-soluble components so that they can be absorbed into the blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on ...
Chyme or chymus ( / kaɪm /; from Greek χυμός khymos, "juice" [ 1][ 2]) is the semi-fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum [ 3] (the beginning of the small intestine ). Chyme results from the mechanical and chemical breakdown of a bolus and consists of partially ...
978-1-84668-285-8. Catching Fire: How Cooking Made Us Human is a 2009 book by British primatologist Richard Wrangham, published by Profile Books in England, and Basic Books in the US. It argues the hypothesis that cooking food was an essential element in the physiological evolution of human beings. It was shortlisted for the 2010 Samuel Johnson ...
Swallowing. Swallowing, also called deglutition or inglutition[ 1] in scientific contexts, is the process in the body of a human or other animal that allows for a substance to pass from the mouth, to the pharynx, and into the esophagus, while shutting the epiglottis. Swallowing is an important part of eating and drinking.
Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. [1] Poor nutrition is a chronic problem often linked to poverty, food security , or a poor understanding of nutritional requirements. [ 2 ]