You can refer to the below digestive system diagram, for better understanding.
Now let us look at the basic structure and functioning of this system - from the food entering the body through mouth, till it gets excreted in the form of feces, which is poop!
» Here's something interesting you should know. A cow's digestive system is quite complex. It's stomach is divided into four parts.
The first part helps to soften the food, the second sends the food back to the mouth where it get chewed again, the third part removes moisture from the food, and the last which is fourth part mixes the food with digestive juices. Complex, right?
» Birds have two sections in their stomach, one acts as a storage room for excess; because, birds can't eat too much food in one go.
» So, why do we get a feeling of butterflies in the stomach? The fluttery feeling in the stomach is caused when you are nervous or excited. They say during such emotions the adrenaline is released which pulls the blood from stomach and transfers it to the muscles.
This causes the feeling of butterflies in the tummy. If you experience this, then just breathe deeply, and within minutes you will be okay.
» Clams belong to a group of animals known as 'filter feeders'. They take in water and filter out the food particles using two valves. One valve filters out food from the water, while other filters out water. This keeps happening throughout their life! Must get tiring, I guess...
» You must have observed that students of biology dissecting frogs for study. This is because the digestive system and many other systems in the frog's body resemble that of a human being.
» Sloths are slow, real slow. But, did you know that even their digestive system works slowly? It can take up to a month to process food in its digestive system.
» Did you know that a full-grown horse intestines are 90 feet long?
» Ever wondered why we get growling sensation or rumbling sound in the stomach when we are hungry? The rumbling sound is caused due to contraction of stomach and intestines.
However, when we don't have food the rumbling sensation can be heard, because if there is food in the stomach the sound gets muffled.
» Did you know that the food you eat, gets cooled or warmed in the mouth till it reaches an appropriate temperature?
Absorb: To take something in, can be a liquid or other substance.
Alimentary Canal: It is a passage through which the food passes.
Anus: It an opening at the end of digestive system, from which the waste matter exit.
Appendix: It's a tube-shaped sac, which is joined to the lower end of the large intestine.
Bile: It is a yellowish-green fluid which is secreted by the liver and gets stored in the gallbladder.
Digestive System: This system helps to absorb food in the body, and get rid of waste (feces) from the body.
Epiglottis: It's a small flap located at the back of the tongue, it opens at the opening of the esophagus to pass the food, and ensures that the food doesn't go down the windpipe.
Esophagus: It is a long tube that connects mouth and the stomach, food passes from mouth to stomach via this tube.
Gallbladder: It's a small organ which is below the liver. It is sac-shaped and stores bile.
Gastrointestinal Tract: Also, referred as GI tract or digestive system is an important body system which absorbs food and gets rid of waste.
Liver: Liver is the biggest organ in the body after skin. This organ helps in digestion and removes waste products and worn-out cells out of blood.
Mouth: The top opening of the digestive tract, starts with lips and includes tongue, teeth and gums.
Pancreas: It is a large gland located behind the stomach, it helps to secrete digestive enzymes into the duodenum.
Rectum: The last section of the large intestine, which stores solid waste.
Salivary Glands: They are located in the mouth and help to create saliva.
Stomach: A sac-shaped organ which is attached to the esophagus, it helps to break down and digest the food.
Small Intestine: It forms a part of the digestive tract and is between the stomach and the large intestine.
Large Intestine: It is attached to the small intestine, and is wider than the small intestine. It helps to absorb water from the waste.
Trachea: It is also known as windpipe, and is a tube-like part of the respiratory tract.
Lactose Intolerance: Lactose is a type of sugar present in milk and dairy products. Some people can't tolerate it, and on consuming such foods suffer from symptoms like bloating and gas.
Heartburn: Backward flow of fluids from stomach to the esophagus, causes a warm sensation in the upper abdomen.
Enzymes: These are proteins which help to speed up a chemical reaction.
Saliva: Watery secretion in the mouth due to salivary glands is called saliva.
Stool: It is the solid matter which is discharged by the anus.
Q1. Where does the digestion start?
Q2. The stomach is shaped like which letter?
Q3. How long is the small intestine?
Q4. Which is the largest organ in the human body after skin?
Q5. The food passes from mouth to _____ and then to the stomach. Fill in the blank.
Keep eating a lot of fresh fruits and vegetables, as they are rich in dietary fiber. Dietary fiber helps to clean the intestines by removing fats and aids in digestion. Also, drink plenty of water throughout the day to keep yourself hydrated. Keep yourself active by playing outside and doing activities like running, jumping, or other sports. Following such habits will keep your digestive system functioning smoothly and keep you in great health.