You digestive system is naturally designed the way that it turns the food you intake into nutrients which are important for your body’s health. Body uses those nutrients for growth, cell repairing and gaining energy. See how your digestive system works:
The whole system starts working from your mouth when you intake the food. Mouth is the opening or beginning of the digestive tract. Digestion starts here when you start to intake the meal. Chewing breaks the food that’s why it is digested easily while saliva gets mixed with the food so that your body can absorb it.
Throat is also known as pharynx, the next path of the food. from here, the food travels to your swallowing tube or esophagus
Esophagus is a tube formed of muscles. It starts from the pharynx and ends to the stomach. Esophagus delivers the food to the stomach by making a few contractions called as peristalsis. Just before reaching to the stomach, there comes a zone of high pressure known as esophageal sphincter. This is a valve which keeps the food from passing back to the esophagus.
It is an organ which looks like a sac with strong walls. It holds mixes and grinds the food. Then it secretes powerful enzymes and acids which further break the food. After this the food leaves the stomach in the form of a paste or liquid and moves towards small intestine.
Stap-5: Small Intestine
The small intestine is made up of the three segments named as duodenum, jejunum, and ileum. It is a long tube which is loosely coiled in the abdomen. It further continues breaking down the food with the help of the enzymes which have been released by pancreas and bile from the liver.
Bile helps in digesting the fats and eliminating the waste products from the blood. Contraction works here too on moving and mixing the food with digestive secretions.
Duodenum is very much responsible for keeping the process of breaking down continue while the jejunum and ileum help in absorbing the nutrients into blood.
Pancreas secrete enzymes in small intestine which break the fats, proteins, and carbohydrated from the food.
It has many functions but the most important is associated with the digestion. It makes and secretes bile and purifies the blood, which contains the just absorbed nutrients, that comes from small intestine.
This is a pear shaped organ which lies under the liver and accumulates bile which is made in liver and travelled from there through a channel called as cystic duct.
When the nutrients are absorbed and the leftover fluid passes through the small intestine, the food left behind is handed over to colon which is the large intestine.
Step-9: large Intestine
This is also a muscular tube which is 5-6 ft long and is connected to cecum which is the first part of the large intestine to the rectum-the last part of large intestine. The leftover waste from the whole process is passed through the large intestine by the means of contractions, first in liquid form and then in solid form because its water is removed from the stool. When the descending colon becomes full of stool, or feces, it empties its contents into the rectum to begin the process of elimination.
Rectum is an 8 inch chamber which connects the colon to the anus. It receives stool from the colon. When anything comes to the rectum, the sensors send the message to the brain and then the brain decides if the content can be released or not. If it needs to be release, the sphincters relax and the rectum contracts, expelling its contents. If it is not to get released yet then the sphincters contract and the rectum accommodates, so that the sensation temporarily goes away.
Anus us the last part of digestive tract which consists of the pelvic floor muscles and two anal sphincters. The lining of the upper anus detects the rectal contents. It lets us know whether whether the contents are liquid, gas, or solid whether the contents are liquid, gas, or solid. The pelvic floor muscle creates an angle between the rectum and the anus that stops stool from coming out when it is not supposed to. The anal sphincters provide fine control of stool. The internal sphincter keeps us from going to the bathroom when we are asleep, or otherwise unaware of the presence of stool. When we get an urge to go to the bathroom, we rely on our external sphincter to keep the stool in until we can get to the toilet.