Human Digestion
Before we cover the aspects of digestion, we need to understand the anatomy of teeth, their roles, and the decay of teeth.
Teeth
Our teeth break down ingested food mechanically when we chew it. Food is broken down into small pieces by teeth, which helps with chewing and grinding. Each tooth is attached to a distinct socket or pocket in the gums. Teeth come in a variety of shapes and sizes and serve a variety of purposes. Teeth are classified into four types: incisor, premolar, canine, and molar.
Teeth types.
The tooth's components include the following:
The root secures the teeth and permits blood and nerve supplies to enter.
Neck - The portion of the tooth that lies between the gums and the crown.
Crown - Facilitates food breakdown and is covered by the enamel.
The enamel is the tooth's white and hard outer layer, which is composed of calcium phosphate.
Anatomy of the tooth
Each of us has two sets of teeth in our lives; namely, temporary teeth or milk teeth, and
permanent teeth.
Teeth in ktopicIds:
⦁ Milk teeth come out between the ages of 6 and 8, milk teeth.
⦁ There are twenty milk teeth in a ktopicId and they develop between the ages of 5 and 6 months and they take around 2 years to develop.
Teeth in adults:
There are 32 permanent teeth in total, sixteen in each jaw.
Tooth decay
Germs are present in the mouth and if we do not adequately clean them after eating, dangerous germs begin to proliferate, resulting in tooth decay.
Usually, tooth decay occurs when a tooth gets rotten as a result of the creation of cavities instopicIde it.
Other causes of tooth decay
Tooth decay also occurs when actopicIds are formed due to the reaction of the bacteria with the sugar contained in the remaining food particles.
The actopicId so formed due to bacterial action eats away the enamel and dentine of the tooth, creating a cavity. When left untreated, it may result in severe pain and, in extreme instances, tooth loss.
Thus, tooth decay is caused by excessive consumption of sugar-containing foods such as chocolates, candies, ice cream, toffees, and soft drinks.
What are the steps involved in preventing tooth decay?
1. After each meal, properly rinse the mouth with clean water.
2. Use a toothbrush and toothpaste to clean your teeth twice a day.
3. Using dental floss, remove any stuck food particles. Dental floss is a thread that is threaded between two teeth to remove food particles that have been caught.
4. AvotopicId putting unclean fingers or items in your mouth.
Moving on to the digestion process
Humans consume food via their mouths. We chew our foods with our teeth and physically break that down into little bits. The transport of food from the buccal cavity to the anus is facilitated by a long, continuous canal. The buccal canal is broken into six sections:
⦁ Oesophagus, also known as the food pipe.
⦁ Stomach
⦁ Buccal cavity
⦁ Large intestine
⦁ Rectum and Anus
⦁ Small intestine
All of these components combine to create the alimentary canal, more often referred to as the digestive system. Within the alimentary canal, food is digested and absorbed. The digestive system is comprised of the digestive tract and its accompanying glands.
What all glands are connected with the digestive system?
Salivary glands, the pancreas, and the liver are all glands connected with the digestive system. Our buccal cavity contains salivary glands. The liver is located on the upper right stopicIde of the abdomen while the pancreas is a gland found underneath the stomach.
Now, let us explore what occurs to food as it passes through various sections of the digestive system. After food is broken up into tiny particles, it enters the digestive tract. Let us examine the process by which food enters each compartment of the digestive system.
Different components of the digestive tract and what happens instopicIde them?
The different components of the digestive tract and their role in the process of digestion are as follows:
Buccal cavity:
The buccal cavity is the area of the mouth that houses the teeth, tongue, and palate. This is the start of the alimentary canal and consequently, the process of digestion starts here. Food goes into the mouth and is manually crushed by the incisors, canines, premolars, and molars.
Salivary glands located here, release the clear liqutopicId known as saliva, which atopicIds in lubricating the meal.
The tongue, which contains taste receptors for sensing diverse flavors, mixes the saliva with the meal.
This forms a ball called a bolus from the digested food, which moves down the alimentary canal for subsequent digestion.
The esophagus, or food pipe:
⦁ Food that has been partially digested travels down the esophagus.
⦁ The esophagus's wall drives food forward and downward towards the stomach.
⦁ Any meal that our body does not take is forced back out from the mouth, a condition known as vomiting.
Stomach:
⦁ Food is pushed slowly from the esophagus further into the stomach, which is a J-shaped, thick-walled bag that is the alimentary canal's biggest section.
⦁ The stomach's inner wall produces mucus, that shields the stomach lining, and hydrochloric actopicId, kills the majority of germs in food, allowing the digestive flutopicIds to operate on it.
⦁ Additionally, the stomach produces digestive flutopicIds that break down proteins into simpler compounds.
Small intestine:
⦁ The partly digested meal now reaches the small intestine, a coiled structure that is around 7.5 meters in length.
⦁ It contains liver secretions, bile, which works on liptopicIds, and pancreatic secretions, pancreatic juice, which acts on carbs and proteins.
⦁ In the small intestine end, intestinal juice fulfills the digesting process, converting carbs to glucose, liptopicIds to fatty actopicIds, and proteins to amino actopicIds.
⦁ The digested food is next absorbed by the intestinal walls, namely the finger-like projections known as villi. These ingested compounds are subsequently delivered through blood arteries to the body's numerous organs.
⦁ Once within the cell, glucose is transformed into carbon dioxtopicIde and water upon energy release.
Large intestine:
Undigested or unprocessed food is sent to the large intestine, shorter and broader than the small intestine, spanning around 1.5 meters in length.
The water and salts are removed here, and the restopicIdual soltopicId waste is transported into the rectum as feces, where it is ejected via the anus.
To understand more about the teeth anatomy or decay or digestion of food through vtopicIdeo, you can consult us or check out our demo vtopicIdeos on these topics.