The Digestive System Of The Human Body

The digestive system absorbs the minerals and nutrients from the foods that have been eaten. The break down of food beings in the mouth, where the

The digestive system is a group of organs that work together. It is responsible for taking whole foods and turning them into energy and nutrients to allow the body to function, grow and repair itself. Today, I will explain how the digestive system performs this unique process.

The digestive and excretory systems help the body with the wonderful task of food. The digestive system is composed of the stomach, mouth, liver, pancreas, and the large and small intestine. It digests food and provides the

The digestive system is a severely underrated part of the human body. For most people, the digestive system is just something that gives them diarrhea after they eat poorly. Little do they know, that the digestive system is the key part to fueling our bodies. The digestive system is how you break down and absorb much needed nutrients. This is how we “fuel” our body. Our body breaks down the food we eat into manageable pieces, and then we are able to absorb it into our bloodstream so that it can be distributed to the rest of the body. In order for this system to succeed in fueling this machine we call our body, all of the parts have to act in unison. If the mouth and stomach can’t break down the food properly, then the small intestine and large intestine are unable to absorbs the proper nutrients to keep the body running. The same goes for the opposite, if the intestines cannot absorb the proper nourishment. Any deficiency in nutrients can lead to many different types of diseases.

The digestive system is very important in digesting food and breaking it down so it can be digested easily. The digestive system turns food into energy. Throughout the process there are nutrients which are absorbed. There are many things that contributed to the digestive system such as the mouth which produces saliva which helps to break down food and nutrients such as carbohydrates with the help of an enzyme called amylase. The major food groups which are called macro nutrients include carbohydrates, proteins and fats. All of these nutrients play an important role in the body. There are also many micro-nutrients which include vitamins and minerals which provide the body with health and well-being. The digestive system is made up of the mouth, which includes the teeth (the teeth are used to cut and grind food into smaller pieces, they contain blood vessels and nerves), tongue (the tongue is a muscle that has a rough surface including the taste buds), salvia glands (they produce salvia which moistens the food to make is easier to digest), the pharynx (this helps the food travel to the stomach, the pharynx also plays an important role in the respiratory system. It also contains 2 different flaps to separate the 2 functions), esophagus (this connects the pharynx to the stomach and transports chewed food to the stomach), stomach (this is a muscle that is

The esophagus connects the mouth to the stomach, where the process continues. The stomach holds food while it is being mixed with enzymes. The small intestines release nutrients from the broken down food. These nutrients fuel the body and make it

Esophagus: To push down any food that has gone through the throat and deliver it to the

Your epiglottis, a flap of tissue, covers up your trachea, the tube that connects your lungs to your nostrils and mouth. After the epiglottis covers up the trachea the food goes down the other tube which is called the oesophagus. The oesophagus is the muscular tube that connects your mouth to your stomach. Now, this food does not just magically fall down your oesophagus. Smooth muscle contractions, known as peristalsis, are pushing your food down your oesophagus.

For this weeks assignment I chose to write about the mouth. In the case of the digestion system, everything starts in the mouth. The mouth, is where the food in most cases, enters the body and begins to digest. The chunks of food after being in the mouth get chew into smaller chunks, and mix with liquid from the salivary glands and from other food and beverages in order to be swallowed, and to move on down the pharynx. This process is called a bolus. In order to avoid choking the epiglottis shuts the airway, by doing this the food is also able to not enter the lungs.

THe digestive system is the system that breaks down what one eats into the nutrients the body needs to function properly. It also takes the parts the body does not need and eliminates it from the body. There are three major functions of the digestive system (Coolidge-Stolz et al 60). First, the food one eats is broken down into molecules that the body can use and turns the other parts into waste. Next, the useful molecules are absorbed into the blood and carried throughout the body. Lastly, the waste, or parts the body doesn’t need is eliminated from the body (Coolidge-Stolz et al 60). The digestive system has many parts. Some of these are the mouth, salivary gland, epiglottis, esophagus, liver, stomach, gallbladder, pancreas, large and small intestine, and the rectum. The digestive process starts in the mouth. The salivary glands release saliva that assist the teeth in breaking down food (Coolidge-Stolz et al 60). After chewing is done, one swallows and the food particles and it goes down the esophagus. Before it goes down the esophagus, the epiglottis closes so no food goes down the windpipe.The epiglottis is a tiny flap of

Once food leaves the mouth, it travels down the oesophagus and into the second cavity the stomach. Here digestives enzymes are released such as hydrochloric acid and gastric

Now that the food has been chewed well, it is now swallowed into esophagus. Esophagus is a long tube which acts as a path to the main digestive organ: the stomach. However, it is important to note that it's not just a carrier of the food but also a digestive organ itself. The enzymes secreted in the esophagus further facilitate the digestion process. The esophagus is a long muscular tube. I can feel its rhythmic motion while I am moving down the tube along with the food. This rhythmic motion helps the food to reach the stomach. I can't help noticing the gall bladder while passing by the liver while entering into stomach (Netter, 2006).

The human digestive system, like those of other vertebrates, is built around an alimentary canal - a one way tube that passes through the body. The function of the digestive system is to convert foods into simple molecules that can be absorbed and used by the cells of the body.

The esophagus is a flat, flexible tube of smooth muscle that connects the mouth to the stomach. In the esophagus there is a flap called the epiglottis covering the pharynx and helps avoid food from entering it; it also prevents choking. The esophagus has a layer of mucus on the inside that helps the food go down to the stomach. Contractions pushing the food to the stomach are called peristalsis. Peristalsis occurs even when someone is upside-down. So, that is why it is possible to eat while upside down. After the food stays in the esophagus for

Since this student had a bag of chips which is carbs and turkey sandwich which is considered protein and fat and water. The first stage in the digestive system is ingestion when the student enters his lunch in their mouth. In this stage there is mechanical and chemical digestion taken place. The mechanical digestion is take place by biting and tearing the food into smaller parts which would then be known as bolus. Chemical digestion is occurred when the three salivary glands sublingual, submandibular, and paratoid gland that secretes saliva which contains amylase. Amylase is used in this case to breakdown starch. In the mouth the carbohydrates and fat are broken down. In carbohydrates the starch and disaccharides are mixed with the salivary amylase, and in fats the unemulsified triglycerides are mixed with lingual lipase. Once mechanical and chemical digestion is complete in the mouth food continues its route to the digestive system going through deglutition. In deglutition the esophagus sphincter begins to contract in which the tongue forces the bolus upward towards the hard palate making the bolus to enter the oropharynx. Once it enter the oropharynx in order to prevent the bolus to enter the trachea the uvula and larynx rise upward and the superior esophageal sphincter starts to relax which would then allow food to enter the esophagus. Once that occurs the muscles of pharynx contract making the bolus to travel down the