Digestive System Literature Reviews Samples For Students

ABSTRACT

Human beings deal with the reality of a world with a plethora of conditions, illnesses and diseases that threaten the health and livelihood of the population on a day-to-say basis. One such persistent disease that many Americans, both young and old, are suffering from is Crohn’s Disease. Crohn’s disease is commonly diagnosed on a regular basis all across the United States, however the reality is that medical realm does not specifically known what causes Crohn’s disease or why it has become so prevalent; some believe it is a combination of immune system deficiencies, genetic predisposition and environmental factors. The condition effects ...

Introduction

There are numerous descriptions of drowning that are available and actually, all of them bear some weight. According to Lunette, G., et.al death by drowning is the consequence of a obstruction of respiration by impediment of mouth and nose by a liquid medium which is more often than not water (2004). Actually, there are many other drowning definitions wherein all have some accuracy. In regards to true drowning, there are relatively no considerable disagreements, since there is a general conduit, which involves the water inhalation, which could eventually pass through the alveolo-capillary membrane thus eventually reaching the general circulation ultimately. Characteristically, a difference ...

Introduction

Dietary fiber is a combined term for a diversity of plant matters that are resistant to digestion by human gastrointestinal enzymes. Dietary fibers can be categorized into two major groups according to their solubility in water. In humans, natural gel-forming fibers (gums, pectins, mucilage, and the remains of the hemicelluloses) are soluble. Whereas the matrix fibers or the structural (lignins, some hemicelluloses, and cellulose,) are insoluble, Dietary fiber and whole grains are among the best sources of nutrients including minerals, a slowly digestive energy and vitamins. (Byrne, 2011). They also contain phytochemicals such as carotenoids, lignans, inulin, beta-glucan and phenolic. These chemicals ...

Introduction:

Clean non-polluted water is a major basic requirement for all the living things. Nowadays, its availability becomes a major problem in the ecosystem. This problem is expected to increase in the future due to population growth and industrialization processes. The processes discharge of domestic, industrial and agricultural wastes contribute largely to the contamination of existing natural waters in the environment. Therefore, at the present moment, it is important that the pathogens and pollutants are completely removed from the waste water to cater for the needs of domestic use, industrial use, and irrigation purposes. This paper discusses two processes of oxidation and ...

Introduction

It is approximated that about one billion people in the world today suffer from iron deficiency anemia (Sloan, Jordan, & Winikoff, 2002). There are many causes of this disease that have already been identified such as poor diet, menses, excess bleeding in the intestine, and inability of a person to absorb iron among others. However, the question that remains to be answered is why many people continue to be affected despite much information about the disease that is already available.

Background

Iron deficiency anemia is a type of anemia that occurs due to loss of iron in the body that may be caused ...

Introduction

Recently, worldwide obesity prevalence has been raised rapidly and nearly doubled between 1980 and 2014, however in 2014 more than a half a billion of adult (18 years and older) were obese (11% men and 15% women) (WHO, 2014). Obesity and overweight are defined as excess body fat accumulation that leads to health risks and comorbidities. Adult weight can be classified based on the Body Mass Index. Hence, an individual having a BMI equal to or more than 25 is regarded as being overweight, while a person with a BMI equal to or more than 30 is considered obese ( ...

The aim of this essay is to present you with the questions risen by the reading of the first four books of Odyssey (rhapsodies a –d). Odyssey is one of the two epics by Homer, worldwide acknowledged for their power in talking to people’s hearts no matter their era, causing feelings of great admiration and movement. In Odyssey, Homer narrates the adventures of Odysseus, the king of Ithaca, an island of Ionian Sea, who took ten whole years to manage and reach his homeland. The main theme of the epic poem is ‘nostos’ which is the Greek word standing ...

Abstract

Herbivores exclusively feed on plants while carnivores feed on meat. These food preferences mean that there are differences in the oral cavities, the stomach, the small intestines and the entire digestive tract mechanisms of the two types of animals. While carnivores such as lions have short digestive tracts with stronger and more acidic digestive juices because meat is easier to digest, herbivores such as zebras have long digestive tracts that are alkaline to increase the rate of digestion and absorption of plant materials.
The basic difference between carnivores and herbivores is that they exclusively feed on meat and plants ...

Alcohol is the world’s oldest known drug that is abused by people. Alcohol has been used by many people for several years and its abuse has become a major societal health problem. The consequences of excessive alcohol intake vary from a mild hang-over to mass destruction, diseases, and death at its worst. When consumed in moderation, it has no or little effects for the drinkers and the people around them. Nonetheless, its misuse has become very dangerous to the drinker and the society. We all agree that, occasional taking of alcohol does not hurt, nonetheless it can lead to addiction ...

Vitamins are essential organic nutrients required in minute amounts for the body's optimal functioning. They could be water soluble or fat soluble. Water soluble vitamins include; vitamins Band C, while the fat soluble vitamins are; Vitamins A, D,E,K. Vitamin A was the first fat soluble Vitamin to be discovered in 1913.

Vitamin A's structure is depicted to the right. Retinol is the precursor of of retinal and retinoic acid. Both are active metabolites of retinol. Retinal plays an important role in vision while retinoic acid is the intracellular messenger which affects the transcription of some gene( Bates ...

1. Split infinitives – interrupting an infinitive by putting in an adverb; split infinitives are not advisable in formal situations, but encouraged in informal ones.
a. Correct: Our profits are about to more than triple in the coming year.
b. Incorrect: To quickly drive to the auditorium, we need to take a shortcut.
2. Personal relative pronoun – A personal relative pronoun can be useful when needing to refer back to a person who was mentioned earlier in the sentence in reference to an action.
a. Correct: I am writing this to the person for whom I am holding ...