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- https://med.libretexts.org/Courses/Woodland_Community_College/NUTR10%3A_Principles_of_Nutrition_(Sheldon)/03%3A_Nutrition_and_the_Human_Body/3.3%3A_Digestion_and_AbsorptionThe breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used a...The breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used as building blocks. The digestive system is composed of the mouth, pharynx, esophagus, stomach, small intestine, large intestine (or colon), rectum, and anus. There are four steps in the digestion process: ingestion, the breakdown of food, nutrient absorption, and elimination of indigestible food.
- https://med.libretexts.org/Courses/Metropolitan_State_University_of_Denver/Introduction_to_Nutrition_(Diker)/03%3A_Digestion/3.2_Hunger_vs._AppetiteDescribe what drives us to eat by using the concepts of appetite, hunger, and satiety, including the organs that are involved, as well as internal and external cues. The hypothalamus triggers feelings...Describe what drives us to eat by using the concepts of appetite, hunger, and satiety, including the organs that are involved, as well as internal and external cues. The hypothalamus triggers feelings of either hunger or satiety (fullness) by integrating signals from nerve cells, hormones, and the amount and type of food we eat.
- https://med.libretexts.org/Bookshelves/Nutrition/An_Introduction_to_Nutrition_(Zimmerman)/03%3A_Nutrition_and_the_Human_Body/3.03%3A_Digestion_and_AbsorptionThe breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used a...The breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used as building blocks. The digestive system is composed of the mouth, pharynx, esophagus, stomach, small intestine, large intestine (or colon), rectum, and anus. There are four steps in the digestion process: ingestion, the breakdown of food, nutrient absorption, and elimination of indigestible food.
- https://med.libretexts.org/Courses/Chabot_College/Introduction_to_Nutrition_Science/03%3A_The_Human_Body/3.04%3A_The_Digestive_System/3.4.01%3A_Digestion_and_AbsorptionThe breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used a...The breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used as building blocks. The digestive system is composed of the mouth, pharynx, esophagus, stomach, small intestine, large intestine (or colon), rectum, and anus. There are four steps in the digestion process: ingestion, the breakdown of food, nutrient absorption, and elimination of indigestible food.
- https://med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Anatomy_and_Physiology_2e_(OpenStax)/05%3A_Energy_Maintenance_and_Environmental_Exchange/23%3A_The_Digestive_System/23.03%3A_Digestive_System_Processes_and_RegulationThe digestive system uses mechanical and chemical activities to break food down into absorbable substances during its journey through the digestive system. The processes of digestion include six activ...The digestive system uses mechanical and chemical activities to break food down into absorbable substances during its journey through the digestive system. The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation.
- https://med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Anatomy_and_Physiology_1e_(OpenStax)/Unit_5%3A_Energy_Maintenance_and_Environmental_Exchange/23%3A_The_Digestive_System/23.02%3A_Digestive_System_Processes_and_RegulationThe digestive system uses mechanical and chemical activities to break food down into absorbable substances during its journey through the digestive system. The processes of digestion include six activ...The digestive system uses mechanical and chemical activities to break food down into absorbable substances during its journey through the digestive system. The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation.
- https://med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Human_Anatomy_(Lange_et_al.)/21%3A_Digestive_System/21.03%3A_Digestive_System_Processes_and_RegulationThe digestive system uses mechanical and chemical activities to break food down into absorbable substances during its journey through the digestive system. The processes of the digestive system includ...The digestive system uses mechanical and chemical activities to break food down into absorbable substances during its journey through the digestive system. The processes of the digestive system include seven activities: ingestion, propulsion, mechanical digestion or physical break down, chemical digestion or break down, secretion, absorption, and defecation.
- https://med.libretexts.org/Courses/Sierra_College/NUTF_10%3A_Principles_of_Nutrition_(Sheldon)/03%3A_Nutrition_and_the_Human_Body/3.3%3A_Digestion_and_AbsorptionThe breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used a...The breakdown of complex macromolecules in foods to absorbable components is accomplished by the digestive system. These components are processed by cells throughout the body into energy or are used as building blocks. The digestive system is composed of the mouth, pharynx, esophagus, stomach, small intestine, large intestine (or colon), rectum, and anus. There are four steps in the digestion process: ingestion, the breakdown of food, nutrient absorption, and elimination of indigestible food.
- https://med.libretexts.org/Bookshelves/Nursing/Medical-Surgical_Nursing_(OpenStax)/19%3A_Gastrointestinal_System_and_Disorders/19.00%3A_IntroductionThe gastrointestinal (GI) system, also known as the digestive system, plays crucial roles such as digestion, absorption, elimination, and immune response. It breaks down food and absorbs nutrients int...The gastrointestinal (GI) system, also known as the digestive system, plays crucial roles such as digestion, absorption, elimination, and immune response. It breaks down food and absorbs nutrients into the bloodstream, which are essential for growth, energy, and bodily processes. Disorders affecting the digestive system's function can significantly impact health and well-being and elevate the risk of chronic conditions. Proper nutrition is vital for overall health.
- https://med.libretexts.org/Courses/Southern_Illinois_University_Edwardsville/Essentials_of_Physiology_for_Nurse_Anesthetists_I_(Gopalan)/01%3A_Cell_Physiology/1.06%3A_Cellular_Metabolism/1.6.01%3A_Catabolic_and_Anabolic_ReactionsThis page explains that catabolic reactions decompose large molecules like glucose, releasing energy stored as ATP, while losing 60% as heat. ATP is involved in energy cycling through phosphorylation ...This page explains that catabolic reactions decompose large molecules like glucose, releasing energy stored as ATP, while losing 60% as heat. ATP is involved in energy cycling through phosphorylation and dephosphorylation. Anabolic reactions utilize ATP to create complex molecules necessary for cellular structure, including proteins and triglycerides.
- https://med.libretexts.org/Bookshelves/Veterinary_Medicine/Anatomy_and_Physiology_of_Animals_(Lawson)/11%3A_The_Gut_and_Digestion/11.05%3A_The_GutThe digestive tract, alimentary canal or gut is a hollow tube stretching from the mouth to the anus. At the mouth the large food molecules are taken into the gut - this is called ingestion. The indige...The digestive tract, alimentary canal or gut is a hollow tube stretching from the mouth to the anus. At the mouth the large food molecules are taken into the gut - this is called ingestion. The indigestible waste products are eliminated from the body by the act of egestion (see diagram 11.1). The food that enters the mouth passes to the oesophagus, then to the stomach, small intestine, cecum, large intestine, rectum and finally undigested material exits at the anus.
