The Digestive System Of Digestion Essay

Digestion starts in mouth and it is going through several steps. Teeth which are a Mechanical digestion start tearing and crushing the food down into small pieces so that the food will smoothly run down our throat. The salivary glands are located underneath the back of our tongues and that’s what is creating our saliva. The saliva is the Chemical Digestion is helping soften the food in the mouth so it is easy to swallow. Also saliva is the first out of several chemicals that is breaking the food into smaller bits. The tongue is the muscle that works with the food and saliva to form something similar to balls that can be swallowed. Also tongue contains taste buds so that we know if the food is salt, sweet, sour or bitter. Esophangus is a simple transportation tube that is joining the throat with stomach. When swallowing we are closing a trap door in our throats called the epiglottis. By closing this trap we are preventing the food prom going to trachea and into our lungs. Also Food moves down the esophangus using muscles not gravity. Stomach is the first stop after the Esophangus. When the food gets into stomach the stomach uses chemicals to try to make the food smaller. These chemicals are called gastric juices and they include hydrochloric acid and enzymes. (Enzymes are

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.

Salivary glands are responsible for excreting saliva which helps with chewing and swallowing. The saliva is the first step to digestion; enzymes in the saliva begin the process.

As you can see, it is a tubelike structure made of muscle and lined with mucous membrane. The pharynx functions as part of the respiratory and digestive system because it is located behind the nasal cavities and the mouth. It is the structure that we refer to as the throat. It is about twelve and a half centimeters long and consists of three parts; the nasopharynx, oropharynx and the laryngopharynx. (Anatomy.tv, n.d.) The esophagus branches off of the pharynx which carries food to the stomach. Swallowing takes place in the pharynx partly as a reflex and partly under voluntary control. The tongue and soft palate pushes food into the pharynx, which closes off the trachea. The food then enters the esophagus. The esophagus is a muscular tube extending from the pharynx to the stomach. . (Mohan, 2010). It is about 25 centimeters long. The production of mucus by glands in the mucosal lining as you can see lubricates the tube to permit easier passage of food moving toward the stomach. (Thibodeau & Patton, 2008). Food is pushed through the esophagus and into the stomach by a series of contractions called peristalsis. The lower esophageal sphincter is just before the opening to the stomach. It opens to let food pass into the stomach and closes to keep it there. (Mohan, 2010).

Esophagus:- It is located inside of the trachea, near the windpipe that is responsible for the respiratory system, these two structures are separate by the epiglottis. A muscular movement that pulls the food downwards is called peristalsis.

The mouth is where the digestion first begins as firstly the scent of the food will travel to the nose causing the salivary glands in the mouth to produce saliva as there are three pairs that do this. As you are chewing the food with your teeth the food starts to get broken down more saliva is produced along with the breaking down. The secretion will be transferred into the mouth and the tongue as the salivary glands are causing it to do this. Also, the digestive juice contains an enzyme which is known as salivary amylase which now begins the digestion of carbohydrates as well as lubricating the mouth in order to help with the bolus formation.

At that very moment your food enters your mouth the digestion process starts. Chewing is the mechanical digestion process that breaks your food into smaller pieces that are easier to digest. While in your mouth saliva secreted from the salivary glands, which is the chemical digestion, is mixed with your food to begin the process of breaking down the food into a simpler form your body can use and absorb. During this chemical digestion there are three types of saliva produced from the different types of food.

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 cheeks within the mouth are there to help move the food to the teeth for mastication. They are also responsible for the action of sucking, which is what an infant uses to eat. The tongue not only has many taste buds but has many functions including the moving of food to the back of the mouth and through the teeth like the cheeks, and to extract some foods after eating as well. Dentition, or as we call them "teeth," aides in breaking down food into smaller pieces which increases the surface area of the food for break down further down the alimentary canal. The pharynx is there to initiate the involuntary swallowing reflex and contains the epiglottis that prevents food from going down the trachea. There is an important process that I like to think of as a snake motion called peristalsis that automatically propels food down the pharynx to the esophagus. Once in the esophagus it continues as a passageway to the stomach going through an opening called the esophageal hiatus and meet the stomach at about T7 of the vertebral column (Saladin, 2015). The stomach could most definitely be its own discussion topic to I will be brief, it is separated into the: cardiac, fundic, body, and pyloric

esophagus, gets into our stomach. At this stage, when the food in the mouth, our brain and

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

The digestive system is one of the most important systems in our body because it takes the nutrients out of food we eat and gives us energy to power our body.

The structure of the digestive system consists of organs that help break down food, absorb nutrients, and eliminate wastes. Organs that contribute to the breakdown of food include the mouth, esophagus, and stomach as well as the pancreas and gallbladder. Nutrients are absorbed through the small intestine, and remaining waste is eliminated through the large intestine and

All animals and humans have a digestive system. The purpose of a digestive system is to digest and absorb. Digestion is the process by which food is broken down into small molecules, these small molecules are then absorbed into the body. The digestive system has two main parts, the digestive tract and accessory organs. According to Cliffs notes (https://www.cliffsnotes.com/study-guides/anatomy-and-physiology/the-digestive-system/function-of-the-digestive-system) the digestive system has seven main processes. Ingestion; Propulsion; Secretion; Mechanical digestion; Chemical digestion; Absorption; Defection. All seven of processes are important in order for the digestive system to work.

Inside your mouth is what is known as your tongue and it has the job of pushing around your food while you chew, in order to help out with the process. Once you have completely dissolved the food and are prepared to swallow what is at this point known as bolus, your tongue pushes it to the back of your throat and into the opening of your esophagus.