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How does the histology of the GI tract change as you move from the esophagus to the stomach small intestine large intestine and anus?
Wiki User
∙ 15y ago
The histology changes in each segment of the GI tract, but from the esophagus to anus it has four main layers that vary according to location. They are called the mucosa, the submucosa, muscularis, and serous layers. The real difference is in the small intestine which contains plicae circulares covered with villi and microvilli for absorption of nutrients.
Wiki User
∙ 15y ago
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The order of the digestive system?
The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system. The small intestine has three parts. The first part is called the duodenum.
Is the esophagus is involved in chemical digestion?
The esophagus has a physical break down. The esophagus squeezes the food down into the stomach, making this a physical break down.
How can throwing up cause damage to your esophagus?
Stomach acid can cause damage to one's teeth. It can also irritate the esophagus, which in the case of acid reflux, can permanently change the cellular makeup (Barret's Disease) of the esophagus.
Is food digestion a chemical or physical change?
Its a chemical change.
Which nutrient is chemically digested in the esophagus?
The answer would probably be starch since this is the only nutrient that start to be digested in mouth and along the esophagus to the stomach. More accurate to say 'none', for although saliva does start digestion that is added in the mouth and the oesophagus is simply the conduit from mouth to stomach.
What is the physical change in food when it enters the esophagus?
the physical change in the change in food when the enters esophagus is when it has a chemical breakdown in your mouth with a mechanical breakdown the chemical breakdown is when your salivia is making the food moist the mechanical is when you chew the food so it easier for it to enter the esophagus and so the salivia can get it moist then your esophagus uses muscles to push the food down into your stomache
Where most of the digestion in the digestive tract occurs?
In order: Mouth, Asophogus, Stomach, Pancreas, Gallblader, Small Intestine, Large Intestine, Rectum, Anus. Mostly in the stomach where food is Mechanically (physically) changed when the stomach muscles squeeze the food. Chemical change also happened when the acids in the stomach separate nutrients, break down food, and kill bacteria. When the two are combined, the food turns into a soupy-like mixture called chyme, which has alot of acid in it from the stomch. I hope that's what you wanted.
What is the clinical significance of the sudden shift on pH from the stomach to the small intestines?
The stomach is covered in mucus to protect it from the strong acids used to digest proteins. The duodenum (the very first section of the small intestine) does not have such mucus to protect itself. The pH change is crucial to make sure that the duodenum is not harmed by the strong acids from the stomach.
What is the role of the esophagus?
It is a tube that connects the pharynx (throat) with the stomach. It passes down the neck, pierces the diaphragm just to the left of the midline, and joins the cardiac (upper) end of the stomach. When a person swallows, the muscular walls of the esophagus contract to push food down into the stomach. Glands in the lining of the esophagus produce mucus, which keeps the passageway moist and facilitates swallowing.The main function of the esophagus is a tube that connects our mouth to the stomach. it is also known as the gullet. The word esophagus comes from a greek word which means to carry what is eaten.The esophagus is your food tube. Your trachea is our tube for air.
When does epithelium of esophagus change to squamous?
I believe that the esophagus does not change to squamous as it already contains stratified squamous epithelium (keratinization depends on species and diet) post- soft palate. I believe that the esophagus does not change to squamous as it already contains stratified squamous epithelium (keratinization depends on species and diet) post- soft palate.
Where does digesting begins?
digestion starts in you mouth when you begin to chew and chemically change you food with you saliva. A group of muscles in you esophagus push your mush of food down your neck into your stomach where the acids break down the food even further. When you food is completely broken down, it travel out of the stomach and into the small intestine where another group of muscles push on the food and squeeze out the nutrients and minerals. Once it finishes in the small intestine, it heads to the large where the food is squeezed again for mainly water. When done with the large intestine, the muck heads to the rectum to be released as solid waste. (eew! =])
How much stomach is sectioned off during gastric bypass?
A gastric bypass consists of two main changes. One is to cut down the stomach so that it can only hold about an ounce of food. The other change is to bypass a portion of the small intestine so that less food is absorbed. Typically anywhere from 8 to 14 inches of intestine is bypassed in this procedure.
