Digestive System Essays (Examples)

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Digestive System Diseases and Disorders
The digestive system is made up of the "digestive tract" -- which is, according to the National Institutes of Health, a "series of hollow organs joined in a long, twisting tube from the mouth to the anus" -- and additional organs that are part of the system that helps humans "break down and absorb food" (National Institutes of Health -- NIH, 2009). If something goes wrong in the digestive system it can have serious consequences for the individual. This paper identifies some of the disorders that are associated with the digestive system. The organs that are part of the digestive system include the mouth, the esophagus, the stomach, the small and large intestines (the large intestine is also called the "colon"), the rectum and the anus (NIH, p. 1).

The digestive system is one of the most important parts of the human body because food intake is….

Digestive System
The gastrointestinal system extends from the mouth to the anus. It includes the oral cavity, esophagus, stomach, duodenum, small and large intestine, rectum and the anus. The digestive system also includes other organs responsible for digestion, namely the liver, gall bladder and the pancreas. By way of the peristaltic movements of the tract and enzymes secreted from these organs, food is digested and absorbed; to be either stored in the body, or used as energy. Nerves and blood vessels also play a major role in the digestive system. (Kumar, 2007)

Diseases of the digestive system are a major cause of morbidity and mortality worldwide. Approximately ten percent of all general practitioner consultations in the United Kingdom are due to digestive problems, with a majority resulting from diarrhea. In the United States, approximately $85.5 billion are spent on GI and liver diseases. (Boon, 2006) The highest cost per year is 9.3….

It is also at this point that other organs begin to play a major role in the digestive process. The pancreas, located adjacent to the small intestine, secretes several enzymes that variously break down carbohydrates much further than they were broken down in the mouth or the proteins that began to met their demise in the stomach (NDDIC 2008). The liver produces a bile that breaks down fats and makes the constituent parts into small enough droplets that they can be suspended in water and utilized in chemical processes in the body (NGS 2010). All of this digestion takes place in the duodenum.
The small intestine continues, however, and throughout the entire small intestine are countless villi, or little finger-like hills that greatly increase the inner surface area of the smooth-muscled tube that is the small intestine (Discovery 2000). It is through the cells of these villi that the nutrients,….

The blood and lymph systems are also vital to digestion's efficacy, transporting nutrients to the cells of the body where they are needed (Smith & Morton 2001). Again, most of the "action" of the accessory organs and their products takes place in the small intestine where the major work of both breaking down and absorbing nutrients takes place (SUNY 2010). It is here that the enzymes secreted by the pancreas and liver arrive to do their work, and it is through the small intestine -- and primarily through the duodenum -- that carbohydrates, proteins, and lipids (fats) as well as other vitamins and mineral nutrients reach the lymph and circulatory systems that carry them throughout the body where they are useful (MNSU 2010).
Pancreatic amylase, one of the enzymes secreted by the pancreas, continues the breakdown of starches that begins in the mouth, converting these carbohydrates into maltose (SUNY 2010).….

nervous and digestive systems at reptiles, emphasizing their main characteristics and briefly compare them to the nervous and digestive systems at other vertebrates.
In this sense, referring to the reptilian nervous systems, many authors have found common basis and similarities between the nervous systems of reptiles and other higher vertebrates, including mammals

These similarities manifest themselves both in the form of anatomical and physiological resemblances. The main difference between the reptilian brain and that of higher vertebrates such as mammals relates to "the size of the cerebral hemispheres"

As such, the reptilian nervous system is formed of two different components: the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is composed of the brain and the spinal cord, while the peripheral nervous system is composed of all nervous tissues and structures that do not actually belong to the CNS.

As at other vertebrates, the brain, constituent part….

Human digestive system is composed of multiple parts, including the mouth (pharynx, throat, palate, tongue, teeth), stomach, small intestine, large intestine, liver, pancreas, salivary glands, bowels, and many more. The sole purpose of the digestive system is to break down foods that are eaten, so that the food might be absorbed into the bloodstream. The existence of a digestive system sets animals apart from plants. Digestion consists of a physical and chemical breakdown of food. Because of the complexity and large size of the digestive system, diseases that can interfere this body system are numerous and varied in their modes of transmission, their symptoms, their treatments, and their possible short-term and long-term effects. This paper will focus on three such diseases: Cirrhosis of the liver (caused by viral Hepatitis), hookworm disease (caused by hookworms), and cholera (caused by Vibrio cholerae).
The large size of the digestive system, along with the diverse….

Digestive Disorders
PAGES 2 WORDS 657

Digestive Disorders: Inflammatory Bowel Disease and Irritable Bowel Syndrome It is important to note that in some instances, the symptoms patient present could be tied to a myriad of disorders. This has in some quarters led to misdiagnoses. Both inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) present a number of similar symptoms. IBD includes a number of inflammatory conditions whereby sections of a person’s digestive system are attacked by his or her immune system. The said conditions are inclusive of ulcerative colitis and Crohn’s disease. IBS, on the other hand, “is a problem that affects the large intestine” (U.S. National Library of Medicine, 2018). In essence, the movement of food in the intestines is enhanced by the relaxation and contraction of the intestines. When the said contraction as well as relaxation does not follow the normal pattern, symptoms of IBS are likely to present.
In basic terms, the pathophysiology of….

Digestive Processes
PAGES 2 WORDS 705

Lipids and Proteins
Lipids

Lipids are fats and they are important to our health. When chemically digesting these lipids or fats, these molecules are broken down into smaller ones that can be more readily passed through the digestive system and into the bloodstream. This fat is transformed into triglycerides and can be used by the body for energy at a later time.

Lipids like almost all food is first mechanically digested by the mouth. During this process the first chemical reaction begins when the saliva begins to break down the fat. As the fat is digested, enzymes called lipases within the mouth and stomach break the bonds of the lipid molecules an prepare them for absorption. The gall bladder and pancreas becomes involved in this process as bile salts are released from these organs and secreted in the small intestine. These chemicals signal to further digest the food by breaking down the molecules….

Digestive Disorder: Diverticulitis
Patient history

The patient is a 37-year-old female with a family history of colorectal cancer mandating regular colonoscopies before the age of 40. The patient's diverticulosis was discovered during a routine colonoscopy at age 35. She was asymptomatic for 2 years, but developed diverticulitis at age 37. When she began experiencing significant pain her lower left abdominal area, she suspected diverticulitis, called her gastroenterologist who referred her to the emergency room for a cat scan, which confirmed the diagnosis, and then given a course of antibiotics, which resolved the issue.

Diverticulitis

"Diverticulitis develops when feces become trapped in pouches (diverticula) that have formed along the wall of the large intestine. This allows bacteria to grow and cause an infection or inflammation and pressure that may lead to a small perforation or tear in the wall of the intestine. Peritonitis, an infection of the lining of the abdominal wall, may develop if….

e. hypertrophy). In the elderly, this process is reverse. Hence, the functional reserve capacities of the skeletal muscles decline with age, largely due to diminished levels of physical activity. As a result daily tasks once taken for granted become progressively more difficult, and eventually impossible, to perform. In illustration, a great deal of muscle force is required to simply stand up or to climb stairs. Therefore, skeletal system is relying upon the reserve capacity of the heart to provide the endurance needed to perform such activities. If an elderly person does not engage in some sort of endurance-based activities, he or she will not have the cardiac reserve capacity needed for daily tasks. More importantly, diminished capacity may not counteract illnesses or diseases. Although strength-based activities help the cardiac reserve, it may not benefit the skeletal system. "While resistance exercise promotes fiber hypertrophy in skeletal muscles, the explosive power of….

"An electrical analogue of the entire human circulatory system ." Medical Biological and Engineering and Computin 2.2 (1964): 161-166. SpingerLink. eb. 15 Nov. 2010.
Inlander, Charles B.. The people's medical society health desk reference: information your doctor can't or won't tell you - everything you need to know for the best in health care. New York: Hyperion, 1995. Print.

Jodrey, Louise, and Karl ilbur. "Studies on Shell Formation. IV. The Respiratory Metabolism of the Oyster Mantle." Biological Bulletin 108.3 (1955): 346-358. JSTOR. eb. 15 Nov. 2010.

Ruppert, E.E., and Karen Carle. "Morphology of metazoan circulatory systems." Zoomorphology 103.3 (1983): 193-208. SpringerLink. eb. 15 Nov. 2010.

Southgate, Paul C., and John S. Lucas. The pearl oyster . Amsterdam: Elsevier Science, 2008. Print.

"The onders of the Seas: Mollusks." Oceanic Research Group. N.p., n.d. eb. 15 Nov. 2010. .

eight, Ryan, John Viator, Charles Caldwell, and Allison Lisle. "Photoacoustic detection of metastatic melanoma cells in the human….

Performance/Reward System:
An organization can achieve a competitive edge only and only with the help of its employees. Therefore, it is necessary that right employees are selected then trained and developed and a performance-based reward system. The question then comes to the performance measurement system. In a furniture retail store where I work they stick to the old practice of a meeting of top managers and supervisor who sit down annually and critically review the performance of all customer service personnel. They carry out a thorough examination of employee performance with respect to the goal set for them by the management. In this setting where only goals are there to guide employees and performance appraisal system is vague and subjective, most employees are just interested in meeting their targets and they do not strive to exceed their employers expectations. Performance evaluation should be an evaluation and development tool with the help….

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More unfavorable publicity came in June when Jintao had to undergo medical checkups to ensure he was SARS-free when meeting President Bush and other G-8 leaders in France. There is little doubt that China's international standing was clearly badly damaged by its government's mishandling of the SARS epidemic.

On July 21, 2004, Dr. Bates Gill, Freeman Chair in China Studies Committee on House International Relations Subcommittee on Asia and the Pacific, stated official Chinese estimates show China now has roughly 840,000 persons living with the HIV virus and as of the end of 2003, only 62,159 persons had been tested and officially confirmed to be HIV-positive. "The remaining HIV-positive individuals in China, estimated at 780,000 persons or more, are not known to public health authorities, and the individuals themselves probably do not know their status, posing significant risks for the further spread of HIV." Yet, outside observers believe that the number….

Main Systems of Human Body
PAGES 12 WORDS 3828

The circulatory or cardiovascular system is responsible for moving nutrients, wastes and gases between body cells, transporting blood across the whole body and battling disease (Circulatory System). Its principal elements are the heart, numerous blood vessels, and blood.
The heart forms the circulatory system's core. This 2-sided, 4-chambered pump which distributes blood to various arteries comprises of the right and left ventricles, and right and left atria. The ventricles, situated within the heart's lower half, are responsible for pumping blood to the whole body (away from our heart), whilst the atria, situated within the heart's upper half are in charge of receiving blood from different parts of the human body. The right and left ventricles pump de-oxygenated and oxygenated blood, respectively; de-oxygenated blood is pumped to lungs while oxygenated blood is pumped to the remainder of the human body (smith, 2013). These 4 chambers are connected to one another by means….

Lymphatic system is a sub-system of the circulatory system. It contains a network of nodes, or vessels and filters, which remove toxins from the body. The role of the lymphatic system in the homeostasis of the body is that it serves as the primary drainage for all of the body's other systems, removing all toxins and excess fluids. It is a major defense against disease and also helps carry nutrients throughout the body.
The lymphatic system does not circulate blood. Lymph is its primary fluid and is formed from fluids surround cells throughout the body and passed into lymph vessels. If this fluid were not removed or filtered, the result would be toxins accumulating in the body. This would create swelling and also prevent the body from fighting against infection and disease.

Disorders or complications originated in the lymphatic system create serious illness in the body. This is because this system works….

Topic Idea 1: Primate Social Structure and Hierarchies

- Discuss the diverse social structures observed in primate species, ranging from egalitarian to strictly hierarchical systems.
- Analyze the factors contributing to the formation and maintenance of social hierarchies in primates, such as dominance, kinship, and alliances.
- Explore the mechanisms used by primates to communicate social status, such as vocalizations, body language, and facial expressions.
- Investigate the implications of social hierarchies on the behavior, mating strategies, and reproductive success of individual primates.

Topic Idea 2: Primate Communication and Language

- Discuss the various modes of communication employed by primates, including vocalizations, gestures, facial expressions, and....

1. Eat a balanced diet: Include plenty of fruits, vegetables, whole grains, and lean proteins in your diet to ensure your digestive system has all the nutrients it needs to function properly.

2. Stay hydrated: Drink plenty of water throughout the day to help keep your digestive system running smoothly and prevent constipation.

3. Exercise regularly: Regular physical activity can help improve digestion and keep your bowels moving regularly.

4. Limit processed foods: Processed foods are often high in added sugars and unhealthy fats, which can negatively impact your digestive system. Try to limit your intake of processed foods and opt for whole,....

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2 Pages
Research Paper

Agriculture

Digestive System Diseases and Disorders the Digestive

Words: 683
Length: 2 Pages
Type: Research Paper

Digestive System Diseases and Disorders The digestive system is made up of the "digestive tract" -- which is, according to the National Institutes of Health, a "series of hollow organs…

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3 Pages
Essay

Disease

Digestive System the Gastrointestinal System Extends From

Words: 1014
Length: 3 Pages
Type: Essay

Digestive System The gastrointestinal system extends from the mouth to the anus. It includes the oral cavity, esophagus, stomach, duodenum, small and large intestine, rectum and the anus. The digestive…

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4 Pages
Essay

Anatomy

Digestive System Understanding the Mechanisms

Words: 1173
Length: 4 Pages
Type: Essay

It is also at this point that other organs begin to play a major role in the digestive process. The pancreas, located adjacent to the small intestine, secretes…

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4 Pages
Essay

Health - Nutrition

Digestive System Digestion Overview Without

Words: 1108
Length: 4 Pages
Type: Essay

The blood and lymph systems are also vital to digestion's efficacy, transporting nutrients to the cells of the body where they are needed (Smith & Morton 2001). Again,…

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4 Pages
Term Paper

Anatomy

Reptiles Nervous and Digestive Systems

Words: 1168
Length: 4 Pages
Type: Term Paper

nervous and digestive systems at reptiles, emphasizing their main characteristics and briefly compare them to the nervous and digestive systems at other vertebrates. In this sense, referring to the…

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8 Pages
Term Paper

Disease

Human Digestive System Is Composed of Multiple

Words: 2207
Length: 8 Pages
Type: Term Paper

Human digestive system is composed of multiple parts, including the mouth (pharynx, throat, palate, tongue, teeth), stomach, small intestine, large intestine, liver, pancreas, salivary glands, bowels, and many more.…

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2 Pages
Essay

Medical / Medicine

Digestive Disorders

Words: 657
Length: 2 Pages
Type: Essay

Digestive Disorders: Inflammatory Bowel Disease and Irritable Bowel Syndrome It is important to note that in some instances, the symptoms patient present could be tied to a myriad of disorders.…

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2 Pages
Essay

Physiology

Digestive Processes

Words: 705
Length: 2 Pages
Type: Essay

Lipids and Proteins Lipids Lipids are fats and they are important to our health. When chemically digesting these lipids or fats, these molecules are broken down into smaller ones that can…

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3 Pages
Case Study

Disease

Digestive Disorder Diverticulitis Patient History the Patient

Words: 1026
Length: 3 Pages
Type: Case Study

Digestive Disorder: Diverticulitis Patient history The patient is a 37-year-old female with a family history of colorectal cancer mandating regular colonoscopies before the age of 40. The patient's diverticulosis was discovered…

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4 Pages
Essay

Anatomy

Tissue Maturation Body System Effects

Words: 1400
Length: 4 Pages
Type: Essay

e. hypertrophy). In the elderly, this process is reverse. Hence, the functional reserve capacities of the skeletal muscles decline with age, largely due to diminished levels of physical activity.…

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5 Pages
Literature Review

Anatomy

Human Circulatory System and Oyster

Words: 1722
Length: 5 Pages
Type: Literature Review

"An electrical analogue of the entire human circulatory system ." Medical Biological and Engineering and Computin 2.2 (1964): 161-166. SpingerLink. eb. 15 Nov. 2010. Inlander, Charles B.. The people's…

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3 Pages
Term Paper

Business

Performance Reward System An Organization Can Achieve a

Words: 1027
Length: 3 Pages
Type: Term Paper

Performance/Reward System: An organization can achieve a competitive edge only and only with the help of its employees. Therefore, it is necessary that right employees are selected then trained and…

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8 Pages
Term Paper

Disease

China's Healthcare System China Is

Words: 2216
Length: 8 Pages
Type: Term Paper

" More unfavorable publicity came in June when Jintao had to undergo medical checkups to ensure he was SARS-free when meeting President Bush and other G-8 leaders in France. There…

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12 Pages
Essay

Health

Main Systems of Human Body

Words: 3828
Length: 12 Pages
Type: Essay

The circulatory or cardiovascular system is responsible for moving nutrients, wastes and gases between body cells, transporting blood across the whole body and battling disease (Circulatory System). Its principal…

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2 Pages
Essay

Anatomy

Lymphatic System Is a Sub-System of the

Words: 595
Length: 2 Pages
Type: Essay

Lymphatic system is a sub-system of the circulatory system. It contains a network of nodes, or vessels and filters, which remove toxins from the body. The role of the…

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