Human Digestive System Parts and Functions

Human Digestive System Parts and Functions Details

Digestive System of The Human Body: Parts, Diagram & Function: The amount of creativity that God has put in to make a human just amazes everyone on this planet. How everything works are amazing and how everything is shaped to be functioning is much more than just a mere creation. But it is not just about human beings, but every other thing in this universe has been made to stand out, isn’t it? Take any living organism and you will be surprised about every other fact, and even if you don’t get surprised, thinking deeply about it will make you jump out of your bed for sure!
How do living organisms feed themselves is in itself an interesting topic to be discussed, but how do they be acquiring their energy from that food? Everything that happens after we eat food, how to know that? Well, if you are curious too, you need to stick to this article till the end, because we got you covered! In this article, we will be talking about the digestive system, the digestive system of human beings, the digestive system’s function, parts of the digestive system and much more!
Let us first start with what actually is the digestive system?

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Digestive System Diagram for Class 10

The digestive system, often known as the gastrointestinal system, is the component of the body that digests food. It breaks down meals into simple compounds that can be taken into the bloodstream; nutrients then travel to the liver, which acts as a chemical factory for the body. The liver’s job is to modify the nutrients so that the mixture is just right for the body.
When food reaches the stomach, it is met with gastric acid, which is essentially dilute hydrochloric acid and is extremely reactive. Its pH ranges from 1.5 to 3.5. In addition, the stomach has a mucus barrier that protects it from acid.
The digestive system encompasses all of the various organs that aid in the digestion of food, including the digestive enzymes required to break down carbs and meat into compounds.

Digestive System

Human Digestive System Parts

The digestive system of humans and many other animals consists of the following components:

  • Mouth
  • Pharynx
  • Oesophagus
  • Stomach
  • Intestines
  • Small intestine
  • Large intestine
  • Rectum
  • Anus

The following organs are part of the gastrointestinal system but not the gut:

  • Gallbladder and liver
  • Salivary glands, lips, teeth, tongue, epiglottis, thyroid, and parathyroids are all parts of the pancreas.

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The Digestive System: Function

Below mentioned are the functions of different parts of the digestive system:

Mouth

The mouth is where the digestive system begins. Saliva is secreted by the mouth and contains enzymes that start the process of breaking down food into a form that your body can absorb and utilise.
More saliva is created as you begin chewing and breaking down the food into small enough pieces to be digested.

Pharynx

The food from your mouth is received by the pharynx. Partial swallowing process takes place in the pharynx.

Oesophagus

The oesophagus is a branch of the throat. The oesophagus transports food from the mouth to the stomach.

Stomach

The stomach is a muscular organ that stores food and also works as a mixer and grinder. Acid and powerful enzymes are secreted by the stomach, which helps to break down the food.

Small intestine

The food passes from the stomach to the small intestine, which uses enzymes made by the pancreas and bile from the liver to break down the meal. The ‘work horse’ of digesting is the small intestine. The majority of nutrients are absorbed in the small intestine.

Large intestine

After the small intestine, what’s left goes into the large intestine. The large intestine is a highly specialised organ with a wide range of functions. It is in charge of digesting waste so that defecation (waste excretion) is simple and convenient.

Rectum

The rectum is a section of the large intestine that finishes in the anus and is part of the gastrointestinal system. It is a temporary storage area for faeces or stools.

Anus

The anus is made up of the muscles that line the pelvis as well as two other muscles known as anal sphincters. It is the last component of the digestive tract.

The Digestive System of Human Body Work

The gastrointestinal tract, as well as the digestive organs that support it, make up the human digestive system. The tongue, salivary glands, pancreas, liver, and gallbladder are digestive accessory organs. Digestion is the process of breaking down food into smaller and smaller components until they can be absorbed and assimilated into the body. There are three stages of digestion: cephalic, gastric, and intestine.
Gastric secretions are produced in reaction to the sight and smell of food in the cephalic phase of digestion.
The gastric phase, where the food is further broken down by interacting with gastric acid until it travels into the first part of the small intestine, is the second stage of digestion.
The intestinal phase kicks off the third stage. Here, partially digested food is combined with a variety of pancreatic enzymes. The chewing of food by the mastication muscles, the tongue, and the teeth, as well as the contractions of peristalsis and segmentation, aid digestion.

Human Digestive System Parts and Functions: FAQs

What is the digestive system and how does it work?

Food and liquids are broken down and absorbed by the digestive system. Then there are processes for vital things like energy, cell growth, and cell repair.

What are the digestive system’s four primary functions?

The key activities of our digestive system include motility, digesting, absorption, and secretion.

What is digestion’s most significant function?

Food must be broken down into nutrients, which necessitates digestion.

When it comes to food, how long does it stay in the stomach?

Food passes through the stomach and small intestine in roughly six to eight hours after being consumed, and then reaches the large intestine for additional digestion, water absorption, and evacuation of undigested food. It takes roughly 36 hours for meals to go through the system.

What role does the liver play in digestion?

Bile is a digestive liquid produced by the liver. Bile juice aids in the digestion of lipids and certain vitamins. Bile ducts transport bile from the liver to the gallbladder, where it is stored. Alternatively, it channels bile juice to the small intestine, where it is used.

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