Digestive System

cells..

The gastrointestinal tract is equipped at critical junctures with a number of muscular valves, or sphincters , which, usually under the direction of the autonomic nervous system, can regulate the movement of food through the digestive tube. Another function of a sphincter is to prevent backflow of partially digested food.The first of these pursestring valves occurs at the cardia , the opening where the esophagus meets the stomach, and is called the cardiac sphincter , from its location almost directly in front of the heart. Another important muscle ring is the pyloric sphincter , at the opening called the pylorus , located at the other end of the stomach, at the connection between stomach and small intestine. The release of waste from the rectum is controlled, partly voluntarily, by an anal sphincter , located at the anus , which marks the end of the tract.

Generally indigestion tablets are not harmful but useful.

But excess of use or some other health problems of some individuals can lead to harmful effects.

See the link below.

platyhelminthes

No, you are not supposed to swallow your snot or eat your boogers but it doesn't harm you, the stomach has its own mucus to keep the acid from eating the stomach

honestly it depends on how much crack you smoke but i would still wear a diaper if i were you

;) I kind of depends on how much your portion is. Your digestion tube is 20ft. long and btw everybody's is 20ft. long!

it is triggered by the smell, taste, sight, or thought of food. parasympathetic impulses trigger gastric juice secretion.

whats is the smallest subunit into which starch an be broken down

The main job of the large intestine is to eliminate solid waste matter in the form of feces. The other important jobs that it does are: reabsorption of water and minerals (electrolytes) and some vitamins.

Sperm that enters the mouth does not have a biological function in females, as it is not designed to survive or travel through the digestive system. If sperm is swallowed, it is broken down by stomach acids and digestive enzymes, rendering it nonviable. Additionally, sperm cannot fertilize an egg unless it is deposited in the female reproductive tract. Therefore, the presence of sperm in the mouth or stomach does not contribute to reproduction.

The Pancreas secretes enzymes for digestion and aqueous bicarbonate (a base) to neutralize acid entering the duodenum (the first portion of the small intestine) from the stomach. The enzymatic component is secreted by the acinar cells of the pancreas, while the aqueous portion is secreted by the epithelium of the pancreatic ducts.

Here are some of the enzymes that are secreted by the acinar cells:

-Trypsinogen 1,2, and 3

-chymotrypsinogen

-proelastase 1 and 2

-procarboxypeptidase A1, A2, B1, and B2

-alpha amylase

-Triacylglycerol hydrolase

-Phospholipase A2

-Colipase 1 and 2.

The pancreatic duct cells (epithelium of the ducts) secrete primarily bicarbonate, but they also secrete Cl. You can also find Na and K in the aqueous portion of the secretion.

That answer for the what the pancreas secretes is: Insulin.

The pancreas secretes the pancreatic enzyme protease, pancreatic lipase, pancreatic amylase.

Tears produce lysozyme to kill bacteria, gastric juice secretes Hcl that kills bacteria.

The digestive system is made up of many structures. Humans need different structures to process the varieties of foods we eat on a daily basis.

The very structure of the molecule of Calcium Carbonate CaCO3means that it contains one Calcium (Ca++) atom, one of carbon (C+), and three of Oxygen (O++). According to the rules of chemical equations, when you mix CaCO3 with HCl (Hydrochloric Acid) found in your stomach, you get Calcium Chloride, Water and Gas CO2. This leaves the acid neutralized, and thus it takes away the burning, as the stomach is no longer trying to digest itself. However, there are better ways of reducing indigestion, as neutralizing your stomach acid, also means that you can't digest protein.

The digestive tract is forced to adapt to life on land due impart to the eating habits of the living creatures and their given surroundings as well as the food that is being consumed on the land itself.

it's liver

The large intestines is where the final step of digestion takes place.

Enzymes such as salivary amylase help break down starches and carbohydrates during digestion.

Because the lisosome, an enzyme, cannot deffrentiate the host from the food. So basically, it will degrade everything it encounters. In this case, intracellular digestion is a means of self-protection.

No it is not, the stomach initiates protein digestion and denatures proteins. The intestines is the first site where absorption takes place.

Carbohydrates start to break down in the mouth due to the presence of an enzyme called salivary amylase found naturally in saliva. The carbohydrates are further broken down in the stomach and small intestine. Fats are broken down in the stomach and small intestine with the help of enzymes secreted from the pancreas, gall bladder, liver, etc.

People can't be born without a digestive system. It is a vital organ that your body needs to live. You will die without your digestive system.

The small intestine. It has villi that absorb nutrients and then transport them to the bloodstream.