Worksheet On The Digestive System

Once again we have been miniaturized in the submarine to continue the fantastic voyage of the digestive system. We will be touring a 55-year-old male. The host will be having a hamburger, French fries, and a root beer. We will be tracing lunch through the digestion process. Digestion is the process of turning the food that is ate into energy needed to survive and involves creating waste to be eliminated. (Mohan, 2010). The digestive tract is a long twisting tube that starts at the mouth and ends at the anus, called the alimentary canal. The wall of this tube is fashioned of four layers of tissue. The layers are listed from the inside coat to the outside coat: mucosa or mucus membrane, submucosa, muscularis, and serosa. The hollow space

One day me and my friends were going to science class, we were so excited to go because we were doing an experiment on the digestive system the whole class went except tommy, when told him to stay to keep the class safe. When we left he opened a bag of chips and we sat in his hand and he ate us. First we went inside the mouth were tommy cut and grinds and triggered his chemical in saliva glands to work with the mechanism of the tongue salivary glands in your mouth makes salivary amylase, which begins the digestive process by breaking down starch when you chew your food,that's how the food into was cut into smaller pieces, after that he swallowed the food and we went down the esophagus we saw epiglottis which is a flexible flap at the end of the larynx connecting it to the throat, it acts like a switch permitting air to pass through as you swallow the food, then we saw the peristalsis , a peristalsis is a muscle contracting in a wave like motion to move the food to the stomach after that we saw the lining of the esophagus, the lining of that esophagus is called a mucosa it runs down the windpipe and heart in front of the spinal cord to prevent food from just dropping into the windpipe, this is starting the digestion process, after that it takes us down the stomach, then

When carbohydrates go through the esophagus, mechanical digestion takes place by the use of peristalsis.

We start with the mouth, in the feature, I am chewing on a bit of bread from a sandwich, the sandwich softens up two distinct ways, mechanical and concoction absorption. Mechanically, teeth are utilized to bite sustenance into little pieces and blend it with salivation with the tongue's assistance. The tongue then sends this pounded up sandwich down the throat to the stomach. Synthetically, Salivary organs in the mouth produce spit, containing the protein amylase to separate starch, is blended with sustenance, making it gentler and smoother prepared for its adventure down to the stomach.

Describe the structure and function of the digestive system in terms of digestion, absorption and excretion

The Intestines (Human Anatomy): Picture, Function, Location, Parts, Definition, and Conditions. (n.d.). Retrieved October 19, 2015, from http://www.webmd.com/digestive-disorders/picture-of-the-intestines

Digestion begins with the process of mastication; food enters the mouth and the teeth begin to crush and grind the food into smaller pieces to form a bolus. Saliva is secreted from nearby salivary glands, which not only moistens food for easier swallowing, but also begins chemical digestion. Swallowing (deglutition) occurs next; at the beginning of a swallow the tongue voluntarily pushes the bolus upwards against the palate and backwards towards the pharynx. Involuntary reflexes are then initiated in order to prevent food from entering the respiratory tract; the uvula closes off the nasal cavity and the epiglottis covers the glottis and seals off the larynx. As the bolus approaches the esophagus the upper esophageal sphincter (UES) relaxes

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.

For the purpose of the project, the stomach will be the main highlight, but the group will also review the entire digestive system. The mouth begins the mechanical digestion with the teeth and chemical digestion with amylase and salivary lipase. Amylase breaks down carbohydrates and salivary lipase breaks down lipids. The mechanical and chemical digestion will then create a bolus which travels down

The muscularis gives the tract the ability to move substances lengthwise. For most of the tract, the muscula-ris is composed of one layer of longitudinal muscle above another layer of circular muscle. The outer layer of the GI tract, the serosa , is a slippery membrane that permits the tract to move inside the abdom-inal cavity without catching or causing discomfort. Your digestive system is always active, as muscular contractions shift, lengthen, and shorten the tube. Although this move-ment is constant, you normally neither see nor feel

Digestion is the process of breaking down food into a form your body can use. The digestion process begins in the mouth. Chewing mechanically breaks down food into small pieces while saliva mixes with the food to create a soft, moist mass of food for swallowing called a bolus. Saliva contains enzymes that chemically breaks down carbohydrates. When the bolus is swallowed, it enters the esophagus. Peristalsis, synchronized waves of muscle movement throughout the digestive system, moves the bolus toward the stomach. When the bolus nears the end of the esophagus, pressure from the food signals the muscle at the end of the esophagus to open and the bolus enters the stomach. In the stomach, the bolus is churned by the powerful muscles of

The first division is the alimentary canal which aliments one's body, through the mouth, pharynx, esophagus, large and small intestine. In these organs, food passes and is broken down where it all leads to the terminal opening. The walls of the alimentary canal all share the same four layers and each specific layer has a specific role in breaking down food. The second division are the accessory organs which consist of the pancreas, liver, salivary glands, teeth, tongue, and gallbladder. For the purpose of this paper, the gastrointestinal (stomach) tract is the organ that will be researched.

The oesophagus - it connects to the stomach via the cardia, the (LES) connects to the cardia and it contracts to hold food inside the stomach.

Have you ever seen a cow chewing when the have not eaten? This confuses many people but you are about to learn why this is. What role does each stomach of the cow play in the digestive process?

Describe the Anatomical location of the Pancreas relative to the other organs in the upper portion of the abdominal cavity.