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Activity in the digestive tract begins before food even enters the mouth. As the meal is being prepared, sensory input such as the sight of a turkey being lifted out of the oven, the clatter of the table being set, and the smell of freshly baked bread may make your mouth become moist and your stomach begin to secrete digestive substances. This response occurs when the nervous system signals the digestive system to ready itself for a meal. This cephalic (pertaining to the head) response occurs as a result of external cues, such as sight and smell, even when the body is not in need of food.
The mouth is the entry point for food into the digestive tract. In the mouth, the taste of food continues the processes begun by the smells, sights, and sounds of food preparation. The presence of food in the mouth stimulates the flow of saliva from the salivary glands located internally at the sides of the face and immediately below and in front of the ears. Saliva contains the enzyme salivary amylase, which begins the digestion of carbohydrate. Salivary amylase can break the
long sugar chains of starch in the bread of the turkey sandwich into shorter chains of sugars. Saliva also lubricates the upper gastrointestinal tract and moistens the food so
that it can easily be tasted and swallowed.
As you can see, Amylase is one of the saliva components,to know what stimulates amylase production you should know what stimulates saliva production.
saliva production is controlled by parasympathatic and sympathatic nervous system (not by GI hormones), and is unique that is increased by both....parasympathatic is more important, however.
The parasympathatic stimulation (through cranial nerves VII & IX) increases saliva production by increasing transport processes in the acinar and ductal cells and by causing vasodilation.
Now you have the following...food or smell induces the parasympathatic, causing ACh release, cholinergic receptors on the acinar and ductal cells receive it inducing a second messenger called inositol 1,4,5-triphosphate (IP3) and also increased intracellular Calcium ions, all of that activates the acinar or ductal cell to secrete saliva including the alpha-amylase.
The sympathatic does the same story with smaller effect and different names...norepinephrine activates adrenergic receptors, and the second messenger here is cAMP.
I hope I made it clear enough for you.
What else can I help you with?
The digestive enzyme amylase is normally secreted into which two regions of the digestive tract?
The digestive enzyme-amylase is secreted in two regions of the digestive tract.i.e.(1) salivary amylase by salivary glands in the buccal cavity.(2) pancreatic amylase by pancreas in the duodenum.
What is the Site of production of Pancreatic amylase?
Pancreatic amylase is primarily produced in the pancreas, specifically in the acinar cells. It is then released into the small intestine where it helps in the digestion of carbohydrates by breaking down starches into simple sugars like maltose and glucose.
If you wanted to find the glands that produce salivary amylase where would you look?
You would look for the salivary glands, including the parotid, submandibular, and sublingual glands, which produce salivary amylase. These glands are located in and around the mouth and release saliva containing the enzyme salivary amylase to help break down carbohydrates in the mouth.
What is the enzyme produced by the salivary glands that initiates carbohydrate digestion in the mouth?
The enzyme produced by the salivary glands that initiates carbohydrate digestion in the mouth is called salivary amylase. It breaks down starches into smaller sugars like maltose and dextrin to begin the process of carbohydrate digestion.
What enzyme begins the breakdown of starch?
http://www.answers.com/topic/salivary-glandAmylase in the saliva is known as Ptyalin.Humans have this enzyme in their saliva, but some mammals, like horses, dogs, and cats, do not.Ptyalin begins carbohydrate and polysaccharide digestion in the mouth; the process is completed in the small intestine by the pancreatic amylase, sometimes called amylopsin.dextrin
What receptor is responsible for the secretion of salivary amylase?
The muscarinic receptors on the salivary gland cells are responsible for the secretion of salivary amylase. Stimulation of these receptors by the neurotransmitter acetylcholine triggers the release of amylase into the saliva.
Where is the Amylase production?
Amylase production occurs in various parts of the body, including the salivary glands, pancreas, and small intestine. In the mouth, salivary amylase helps to start the digestion of carbohydrates. In the small intestine, pancreatic amylase continues the breakdown of complex carbohydrates into simpler sugars for absorption.
What salivary glands that produce secretions rich in salivary amylase?
The salivary glands that produce secretions rich in salivary amylase are primarily the parotid glands. These glands secrete a serous fluid that contains high levels of amylase, an enzyme that begins the digestion of starches in the mouth. Although the submandibular and sublingual glands also contribute to saliva production, the parotid glands are the main source of amylase.
What is the secretion of salivary glands?
salivary amylase
Why does the enzyme salivary amylase will act on starch but not on protein?
Because the enzyme salivary amylase lacks protein.
Where is the salivary amylase located in the body?
Salivary Amylase is located in the mouth in the mouth and in the esophagus.
What is the composition of salivary amylase?
Amylase is a enzyme.And composed of proteins
A mutation in the genes for salivary amylase will greatly affect the chemical digestion of what?
Amylase is responsible for the digestion of starches in the body. If a mutation occurred in the genes coding for the production of amylase, this would interfere with the body's ability to digest starches and other complex carbohydrates (which begins in the mouth with enzymes from the salivary glands).
What organ produces salivary amylase?
The salivary glands, specifically the parotid, submandibular, and sublingual glands, produce salivary amylase. Salivary amylase is an enzyme that helps break down carbohydrates in the mouth, starting the process of digestion. It primarily acts on starches, converting them into simpler sugars like maltose.
What enzyme is produced by the pancreas and the salivary glands?
Amylase is the enzyme made in the salivary glands and the pancreas. Its function is to break down complex carbohydrates, sometimes called starches.. In the mouth they are called salivary amylase and in the small intestine they are called pancreatic amylase. This enzyme is also known as ptyalin.
What is the difference between salivary amylase and pancreatic pytlin?
Salivary amylase is an enzyme produced in the salivary glands that helps break down carbohydrates in the mouth, while pancreatic ptyalin is an older term for salivary amylase and is no longer used in modern scientific literature. Both refer to the same enzyme.
How do you collect salivary amylase?
mouth
