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Demonstrate by experiment the existence of both nervous factor and humoral factor in stimulating the gastric secretion?
The existence of both nervous factor and humoral factor in stimulating the gastric secretion can be demonstrated by the Vagal stimulation of the exocrine pancreas.
The presence of food in the small intestine A. increase gastric secretion B. inhibit gastric secretion C. has no effect on gastric secretion?
B. Inhibit gastric secretion. When food enters the small intestine, signals are sent to the stomach to reduce the secretion of gastric juices to prevent excessive acid production and aid in the digestion process.
How do sympathetic and parasymphatetic activity affect gastric secretion?
Sympathetic activity inhibits gastric secretion by causing vasoconstriction of blood vessels in the stomach lining. Parasympathetic activity stimulates gastric secretion by increasing blood flow and activating gastric glands, leading to increased production of stomach acid and digestive enzymes.
What phase or gastric secretion is stimulated by the sight taste and smell of food?
The phase of gastric secretion that is stimulated by the sight, taste, and smell of food is the cephalic phase. This phase involves the brain sending signals to the stomach to start producing gastric juices in anticipation of food arrival.
What hormone regulates gastric secretion during the cephalic phase of digestion?
Gastrin, which is secreted by the enteroendocrine cells of the stomach. Gastrin stimulates the secretion of hydrochloric acid and pepsin; induces contraction of the lower oesophagus; mildly increases the motility of the GI tract; and relaxes the pyloric sphincter.
Demonstrate by experiment the existence of both nervous factor and humoral factor in stimulating the gastric secretion?
The existence of both nervous factor and humoral factor in stimulating the gastric secretion can be demonstrated by the Vagal stimulation of the exocrine pancreas.
Select the correct statement about the regulation of gastric secretion?
ANSWER IS: Gastric secretion can be stimulated before food has entered the mouth.A.Gastric secretion can be stimulated before food has entered the mouth.B.Gastric secretion is enhanced by very low pH (below a pH of 2)C.The presence of food in the stomach prevents hormonal control of gastric secretion.D.Vagus stimulation of the stomach results in decreased secretion of gastric juice.
An example of a gastric secretion is?
HCl (gastric acid), pepsinogen.
Why might cutting the vagus nerve help someone suffering from peptic ulcer?
Peptic ulcers are frequently caused by oversecretion of gastric juice relative to the protection provided by mucus. Stimulation of the vagus nerve causes secretion of gastric juice. Cutting the vagus nerve should reduce gastric juice secretion.
Secretion of stomach?
Gastric Acid
What stimulate gastric secretion?
Gastric acid secretion is regulated by hormones in the digestive system. This hormone, gastrin is secreted by the lining of the stomach.
The presence of food in the small intestine A. increase gastric secretion B. inhibit gastric secretion C. has no effect on gastric secretion?
B. Inhibit gastric secretion. When food enters the small intestine, signals are sent to the stomach to reduce the secretion of gastric juices to prevent excessive acid production and aid in the digestion process.
Hormones or paracrines that inhibit gastric secretion include?
Hormones that inhibit gastric secretion include secretin. It is a type of hormone that is released into the bloodstream by the duodenum.
Which of the following is not a phase of gastric secretion?
enterogastric
How do sympathetic and parasymphatetic activity affect gastric secretion?
Sympathetic activity inhibits gastric secretion by causing vasoconstriction of blood vessels in the stomach lining. Parasympathetic activity stimulates gastric secretion by increasing blood flow and activating gastric glands, leading to increased production of stomach acid and digestive enzymes.
What is the intestinal phase?
control of gastroc secretion is divided to cephalic phase, gastric phase and intestinal phase. Among these, intestinal phase means gastric secretion in stomach as a result of stimulation in intestine by food. when the food reaches the intestine it secrete gastrin and the hormone transports to stomach by circulation. amount of secretion in intestinal phase is smaller and slower than that of cephalic and gastric phase. by the way if substance like acid, lipid or any high osmotic solution entered intestine, duodenum, gastric secretion decreases this time. This is because of enterogastrone released from duodenum. there are also other hormones such as cholecystokinin and gastric inhibitory peptide. they inhibit the secretion in stomach.
What is the parasympathetic and Sympathetic effect on the stomach?
The parasympathetic is stimulatory to stomach , increase the gastric secretion and motility while the sympathetic is inhibitory , decrease the gastric secretion and motility
