What are the 3 control mechanisms that regulate digestion?
There are three overlapping phases of gastric control—the cephalic phase, the gastric phase, and the intestinal phase—each requires many enzymes and is under neural control as well. Figure 15.20.
What is the homeostatic function of the digestive system?
Gastrointestinal (GI) homeostasis is the balance between the functions of the epithelial cells lining the gut, the immune responses to pathogenic organisms, the tolerance of commensal bacteria. Maintenance of homeostasis plays an essential part in ensuring normal physiology and performance of the GI tract.
Is digestion controlled by a reflex?
Food in the Digestive System Movement and secretion are regulated by long reflexes from the central nervous system (CNS), short reflexes from the enteric nervous system (ENS), and reflexes from the gastrointestinal system (GI) peptides that work in harmony with each other.
What reflex regulates digestion?
The gastrocolic reflex is a physiological reflex that controls the motility of the lower gastrointestinal tract following a meal. As a result of the gastrocolic reflex, the colon has increased motility in response to the stretch of the stomach with the ingestion of food.
How is the digestive process controlled?
Hormones. Cells lining your stomach and small intestine make and release hormones that control how your digestive system works. These hormones tell your body when to make digestive juices and send signals to your brain that you are hungry or full. Your pancreas also makes hormones that are important to digestion.
How does the hypothalamus regulate the digestive process?
It processes sensory impulses received from the smooth muscle within the body which lines organs such as the intestines and stomach, as well as blood vessels. By processing the impulses, the hypothalamus is able to regulate the movement of food, heart rate, and the contraction of the bladder.
How does the digestive system maintain homeostasis quizlet?
the digestive system helps maintain homeostasis by making sure the body has enough nutrients and gets rid of waste. the excretory/urinary system help the body maintain homeostasis by filtering waste from blood, getting rid of waste, and regulates fluid levels in the body.
How does the digestive system maintain homeostasis Prezi?
Digestive System By breaking down food into a chemical form that can be absorbed by the body. Enzymes definition: a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction.
What nervous system controls the digestive system?
Enteric nervous system
Enteric nervous system- is the intrinsic nervous system of the GI tract, containing a mesh-like system of neurons. This system coordinates digestion, secretion, and motility to achieve adequate nutrient absorption.
What part of the nervous system controls digestion quizlet?
The parasympathetic nervous system controls digestive functions and alters the activity of the digestive system via the ___ nerve.
What are the six processes of digestion?
The six major activities of the digestive system are ingestion, propulsion, mechanical breakdown, chemical digestion, absorption, and elimination.