Preview

Sci/241 Human Digestion Paper

Good Essays
Open Document
Open Document
251 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Sci/241 Human Digestion Paper
Human Digestion
SCI/241

Human Digestion
The beginning of the digestive process starts with the smell and sight of food which activate the salivary glands. The mouth is the point at which food enters the digestive tract and continues the digestive process by chewing food. The food is then broken down into pieces and moistened by salivary glands which turn food into a bolus. The bolus goes down the pharynx into the esophagus which connects the pharynx to the stomach. The stomach is an organ that mixes food and secretes gastric juice. The bolus, once in the stomach, is mixed into a semiliquid mass called chime. The stomach is close together with the liver and pancreas but does not get assistance from these organs. The chime then enters
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Pp Lab Report Digestion
    • 1563 Words
    • 15 Pages

    Pp Lab Report Digestion

    Laboratory Report/ Hope Schallert/ Effect of Dietary Fiber on Transit Time and Bile/ Dr. Weithop / 03.08.2015/ Page [1] of [4]…

    • 1563 Words
    • 15 Pages
    Satisfactory Essays
    Read More
  • Better Essays

    Unit 4 Assigment
    • 1938 Words
    • 8 Pages

    Unit 4 Assigment

    The gastrointestinal tract starts with the mouth, which leads to the gullet via the stomach, small intestine, large intestine, and ends at the anus. In due course of the journey, the ingested food is broken down by both physical and chemical means to release nutrients which are absorbed into the blood stream. The ingested food is physically broken down in the mouth by chewing so as to reduce its size for increased surface area over which enzymatic reaction will take place. Enzymatic reaction is known as digestion and this is defined as the chemical breakdown of the ingested complex food molecules by the action of biological enzymes, into simplest form that can be absorbed into the blood stream and assimilated into living cells. In human beings, various components of the ingested food are digested and absorbed at various sections of the alimentary canal .…

    • 1938 Words
    • 8 Pages
    Better Essays
    Read More
  • Good Essays

    Fantastic Voyage Unit 9
    • 1364 Words
    • 6 Pages

    Fantastic Voyage Unit 9

    Digestion begins in the mouth. A brain reflex triggers the flow of saliva when we see or even think of food. Saliva moistens the food while the teeth chew it up and make it easier to swallow. Amylase, which is the digestive enzyme, found in saliva, starts to break down starch into simpler sugars before the food even leave the mouth. The nervous pathway involved in salivary excretion requires stimulation of receptors in the mouth, sensory impulses to the brain stem and parasympathetic impulses to salivary glands. Swallowing his food happens when the muscles in his tongue and mouth move the food into his pharynx. The pharynx, which is the passage way for food and air, a small flap of skin called the epiglottis closes over the pharynx to prevent food from entering the trachea and causing choking. For swallowing to happen correctly a combination of 25 muscles must all work together at the same time. After being chewed and swallowed the food enters the esophagus or gullet is the muscular tube in vertebrates through which ingested food passes from the throat to the stomach. It connects the pharynx, which is the body cavity that is common to both the digestive and respiratory systems behind the mouth, with the stomach, where the second stage of digestion is initiated. The esophagus is a long tube that runs from the mouth to the stomach. It uses rhythmic wave like muscle movements called peristalsis to force food from the throat into the…

    • 1364 Words
    • 6 Pages
    Good Essays
    Read More
  • Good Essays

    Essay On Digestive System
    • 552 Words
    • 3 Pages

    Essay On Digestive System

    The process of digestion has many stages with the first starting in the oral cavity. Within the system, food passes through a tube called the alimentary canal, more commonly known as the gastrointestinal tract. The tract is made up of the oral cavity, pharynx, oesophagus, stomach, small intestines, and large intestines. To provide energy and nutrients to the body, major functions take place in the digestive system which include; ingestion, secretion, mixing and movement, digestion, absorption and excretion.…

    • 552 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Extended Feeding Techniques
    • 513 Words
    • 2 Pages

    Extended Feeding Techniques

    every part of the gastrointestinal tract is designed to help in the digestive process in a specific way. The mouth is involved in chewing also know as masticating. The purpose is to break down food into small enough pieces to pass through the esophagus and enter the stomach. The food is moistened with saliva helping turning it into bolus in order to turn initiate the digestion of food. The esophagus is a tube like muscle which use contractions to pass food from the mouth into the stomach it does not help with the digestive or absorptive function. The stomach acts like a sort of storage depot for food, but also acts as a place in which mechanical and chemical breakdown of food happens. The small intestine absorbs water, electrolytes, proteins, fats and carbohydrates. Whereas the large intestine is where the food matter and water that can’t be absorbed is the formed into stools. The rectum is a temporary storage area for feces before passed.…

    • 513 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Better Essays

    Digestion In Humans Lab Report
    • 3103 Words
    • 13 Pages

    Digestion In Humans Lab Report

    Aim: To distinguish between 5 liquids to come to a conclusion from which region of the alimentary canal it was extracted from.…

    • 3103 Words
    • 13 Pages
    Better Essays
    Read More
  • Good Essays

    Biochemical Digestion Lab Report
    • 547 Words
    • 3 Pages

    Biochemical Digestion Lab Report

    “Enzymes are very efficient catalysts for biochemical reactions. In the mouth there’s an enzyme that will help your food undergo chemical digestion”…

    • 547 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Oesophagus Research Paper
    • 388 Words
    • 2 Pages

    Oesophagus Research Paper

    First the Homo sapien will be insert the food into its alimentary canal. It will then chew the food creating a bolus of food, which is caused by the enzymes in the saliva which break down the food making it ready for swallowing or deglutition. The bolus of food goes through the larynx, which is the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals. The bolus of food passes through the oesophagus. The oesophagus is a muscular tube which helps the bolus of food to move to the stomach by a process called peristalsis, this is the process that happens in the stomach, oesophagus and intestines.peristalsis, is the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wave-like movements which push the contents of the canal forward.…

    • 388 Words
    • 2 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Incomplete Digestion Research Paper
    • 87 Words
    • 1 Page

    Incomplete Digestion Research Paper

    When incomplete digestion occurs, cutting done by the restriction enzyme may have been inhibited by methylation, use of the incorrect buffer, too few enzymes, an incubation time not long enough, or the presence of an inhibitor. There are a few strategies that minimize the effects of incomplete digestion including: determining the enzyme’s sensitivity to methylation and adjusting growing conditions, changing buffer, adding more enzyme, increasing the incubation time, and getting rid of inhibitors through chromatography or increasing the volume of DNA being used to dilute the…

    • 87 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Good Essays

    Digestion Lab Report
    • 487 Words
    • 2 Pages

    Digestion Lab Report

    Digestion define as a process where foods been breaking down by enzymatic action in the Gastrointestinal tract (GI tract) into nutrients in preparation for absorption. GI tract is the flexible muscular tube from mouth to anus. The digestion of carbohydrates begin in the mouth, where an enzyme, salivary amylase (α-amylase;ptyalin) starts to breaking the polysaccharides (starch) into short polysaccharides (dextrin). Dextrin is a partial degradation of starch, shorter chains of maltose units. Salivary amylase is inactivated by stomach acid in the stomach and to a small extent, it continues breaking down starch (but there’s no enzymatic activities on carbohydrates in the stomach). An intestinal enzyme, pancreatic amylase, continues the activity…

    • 487 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    This essay is about the digestive system organs and functions. It covers information about the path food travels.
    • 706 Words
    • 2 Pages

    This essay is about the digestive system organs and functions. It covers information about the path food travels.

    Saliva and teeth begin the track by breaking down the food. Between 1 and 1.5 liters of saliva are produced by your body every day. From there, the food passes through the esophagus and muscles are contracted to squeeze the food down the tubes. This muscle movement is called peristalsis. Then, it dumps into the stomach. The stomach has a very thick wall, with three layers of protective muscle. Strong gastric juices are then dumped to break the food down more. Every day more than 1.5 liters are used to do that.…

    • 706 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Digestive System Working Together
    • 392 Words
    • 2 Pages

    Digestive System Working Together

    The first step of the digestive process occurs in the mouth, and is known as ingestion. Once food is brought to the mouth are chewed by the teeth. In turn the salivary glands begin to secrete saliva. This has a role important, mixed with food, allowing the start of the disintegration…

    • 392 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    The Digestive Tract
    • 1028 Words
    • 5 Pages

    The Digestive Tract

    Digestion begins in the oral cavity where the cheeks and lips press the food against the teeth, a process known as mastication. This is the first phase of mechanical digestion which is also aided by the tongue. There are three major pairs of salivary glands that secrete approximately 1 liter…

    • 1028 Words
    • 5 Pages
    Good Essays
    Read More
  • Better Essays

    Digestion Research Paper
    • 1318 Words
    • 6 Pages

    Digestion Research Paper

    Digestion is a process in which the food that we eat is broken down into tiny nutrients to be taken in by the body. Within the human digestive system, chemical and physical reactions occur that allow for the digestion and the absorption of proteins into the bloodstream. The purpose of this paper is to show how chemistry relates to the daily functions within the body. There are two types of digestion processes, which are called mechanical and chemical digestion. Mechanical digestion includes the physical changes and this happens when food is chewed in the oral cavity, and this leads to the chemical digestion, which breaks down proteins in the stomach by the gastric acids. Between these two points, many organs work to extract nutrients from the food to deliver it to the body. These include the oral cavity, esophagus, small and large intestine, and the stomach.…

    • 1318 Words
    • 6 Pages
    Better Essays
    Read More
  • Good Essays

    Digestive System Research Paper
    • 1649 Words
    • 7 Pages

    Digestive System Research Paper

    When it comes to dairy, there are no good answers that apply across the board. Estimates show that 3/4 of people are intolerant to dairy. If you have any digestive discomfort, or if you've been diagnosed with any other food sensitivities, like celiac disease, it might be a good idea to cut out all dairy in order to heal your digestive system. Having a functioning digestive system is one of the most crucial aspects of health, as your digestion takes the nutrients from your food and turns it into fuel that is usable by your body. We also don't have four stomachs, like baby cows do, and we can't expect to be able to digest something created specifically for baby cows - our digestive systems are too different. Our bodies stop producing lactase (the enzyme to break down lactose) as we grow into adults. BUT the Masai and Loetschental Swiss civilizations, who are free of modern, degenerative diseases, receive a large percentage of calories from dairy products. (Chris Kresser) In areas of the world where dairy has been consumed for thousands of years, it seems that people's genes have been mutated or developed in order to digest lactose better. (1) Your ability to digest lactose could very well depend on your ancestors.…

    • 1649 Words
    • 7 Pages
    Good Essays
    Read More