The Pancreas
Gastrin, secretin, and cholecystokinin are examples of hormones that play roles in the regulation of the digestive system. Gastrin stimulates gastric acid secretion, secretin stimulates pancreatic bicarbonate secretion, and cholecystokinin stimulates gallbladder contraction and pancreatic enzyme secretion.
The layer of the digestive tract that is composed of stratified and columnar epithelium is the mucosa. This layer is responsible for absorption and secretion in the digestive system.
The stomach is a part of the digestive system. It is responsible for breaking down food through the secretion of digestive enzymes and acids.
The liver releases bile, and the pancreas releases digestive enzymes.
Bicarbonate's main role is to help neutralize the very acidic contents coming out of the stomach and into the small intestine. This serves a protective role -- to help protect the lining of the small intestine from being eaten away -- as well as a functional one -- the digestive enzymes at work in the small intestine operate better at a higher pH (less acidic).
Sodium bicarbonate is secreted by the pancreas. The pancreas has both endocrine and exocrine function. Its secretion of sodium bicarbonate is part of its exocrine function.
It helps to normalize the secretion of digestive juices and enzymes in the gastrointestinal tract
yes
Bicarbonate is the secretion that neutralizes stomach acid as chyme enters the small intestine. Bicarbonate is necessary because chyme is highly acidic. Bicarbonate is created in the pancreas.
Bile contains bicarbonate which, along with pancreatic secretion, is released into the small intestine to neutralize stomach acid. However, sodium bicarbonate is a white powder commonly called baking soda. Bicarbonate in the body is in ionic form.
secretion
That would be the pancreas.