The thing that may protect the stomach from acids are:
1-The parietal and chief cells, which are located in the lining of the stomach, are impermeable to acids. Therefore they help to protect the stomach from acids.
2-The layer of alkaline (basic) mucus containing bicarbonate.
3-The tight junction between epithelial cells. It stops acids from leaking into the submucosa layer.
4-The rapid rate of cell division. This will allow damaged cells to be replaced.
5-The protection effects provided by prostaglandins that are produced by gastric mucosa.
The stomach is protected by many things, including a layer of mucus and buffers (such as bicarbonate). The acidic nature of the stomach prevents the growth of many micro-organisms, and there are also immunoglobulins and phagocytes. High blood flow means excess H+ ions are taken away and there are tight junctions between the epithelial cells to prevent things getting through.
All of these features help to protect the stomach from damage.
the appendix
mucous
Mucus
mucus
The mucous is the substance that protects the stomach walls from digestion. The mucous cells are found throughout the stomach lining and secrete mucus which protects the stomach from its own digestive secretions.
Your rib cage protects your heart and stomach,because the rib cage is kind of a cage and when you get hit there,it dosent hurt your organs but it can damage the rib cage.
the rubber casing on the outside of the cable is what protects it from damage.
A virector.
The brain. Protects from serious damage.
Eating pumice is a very bad idea. Pumice is an igneous rock, and it would probably damage your digestive system if your stomach acid doesn't dissolve it. Even if your stomach did dissolve it, there could be lethal toxins in a rock like pumice.
Help
The brain. Protects from serious damage.
Antacids work only in the stomach and pylorus, where the powerful stomach acid secretions can cause irritation and damage to the tissues. Ordinary antacids neutralize some of this acid to reduce discomfort. However, damage (e.g. ulcers) can still occur. In the duodenum, basic secretions including bile from the liver neutralize the acid pH.
The stomach wall can be damaged by factors such as excessive alcohol consumption, prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs), infections (such as H. pylori), ulcers, or excessive stomach acid production. This damage can lead to conditions like gastritis, peptic ulcers, or even perforation of the stomach wall in severe cases.
xanthophyll
Sheath.