Chapter 18: The Cardiovascular System: The Heart Heart Anatomy Approximately the size of a fist Location Enclosed in pericardium, a double-walled sac Pericardium Superficial fibrous pericardium Deep two-layered serous pericardium Layers of the Heart Wall Epicardium—visceral layer of the serous pericardium Myocardium Endocardium is continuous with endothelial lining of blood vessels Chambers Four chambers: two atria and two ventricles Atria: The Receiving Chambers Walls are ridged by pectinate muscles Vessels entering right atrium o Superior vena cava o Inferior vena cava o Coronary sinus Vessels entering left atrium o Right and left pulmonary veins Ventricles: The Discharging Chambers Walls are ridged by trabeculae carneae Papillary muscles project into the ventricular cavities Vessel leaving the right ventricle o Pulmonary trunk Vessel leaving the left ventricle o Aorta Pathway of Blood Through the Heart The heart is two side-by-side pumps o Right side is the pump for the pulmonary circuit Vessels that carry blood to and from the lungs o Left side is the pump for the systemic circuit Vessels that carry the blood to and from all body tissues Pathway of Blood Through the Heart Right atrium tricuspid valve right ventricle Right ventricle pulmonary semilunar valve pulmonary trunk pulmonary arteries lungs…
Genetically Modified Organisms (GMO), are organisms whose genetic material has been artificially manipulated in a laboratory through the means of Genetic Engineering. It is when a gene from one organism is taken and inserted into another in order to improve and produce a desired trait for that certain organism. Sometimes it is known as "transgenic" for transfer of genes.…
A GMO might be a bacteria, plant, animal, or humans, who’s genetic might be changed using modern laboratory techniques. A GMO is a living organism that can develop and duplicate and can expand through its genes and be modified genes to its duplicates. Genetically modified organisms are a very controversial subject in society today as this is commonly used in products consumed by the general public as food sources. This can include fish, oils, vegetables, fruits, and even yeast and grain products. The need for the modification within food sources is noted by an increase in population and a more cost effective way to feed the vast public.…
A few pros would have to be, Foods can be modified to have more essential vitamins and nutrients, or simply taste better. By doing this, the increase in variety, and convenience for foods allows others to get their needed vitamins, and nutrients from just plants rather than having to buy supplements. Genetically modified foods are part of our daily diet and reassuringly enough appear to be quite healthy for us. Some would see this as a plus because everyone is looking for new ways to be healthier and GMO's give you that option. There are no known health risks so it is a matter of belief whether or not you want to trust in genetically modified foods. If you are willing to try GMO's then you will be surprised to see that the downsides are very…
A genetically modified food or GM food product is defined as “meat and edible plants modified through genetic engineering” (Genetically Modified (GM) Foods, 2015). Furthermore, human beings have engaged in the process of genetically modifying plants and animals, with selective breeding practices within identical species, “since the beginning of civilization” (Genetically Modified (GM) Foods, 2015). However, current methods of genetic modification can cross species boundaries, which require suppressive techniques to ensure the foreign genes are accepted by the target plant or animal (Genetically Modified (GM) Foods, 2015). Indeed, this process has led to significant debates regarding the safety of the products that contain GM ingredients and whether these products should be clearly labeled to assist consumers in making an informed choice.…
How would you feel if I told you that the food you're eating was made in a science lab? Genetically modified organisms, or GMOs, are the outcome of a laboratory process where genes from the DNA of one species are extracted and artificially manipulated into the genes of an uncorrelated plant or animal. Crops are often genetically modified to be resistant to pesticides so farmers would be able to spray them without harming the crop itself. However, there are many consequences regarding consumers’ health and environmental problems. Many people question the safety of consuming genetically modified organisms. Companies should acknowledge that their product is genetically modified by placing a label on the product because customers have a right to know. Furthermore, there are several serious health complications that may rise to the consumer. And finally, genetically modifying organisms should be limited by being placed in a controlled environment to prevent contamination with other species because it can be harmful to the environment in several ways.…
Genetically Modified Organisms, also known as GMOs, are “living organisms whose genetic material has been artificially manipulated in a laboratory through genetic engineering,” (The Non-GMO Project). While genetic engineering has the capability of being beneficial to our society, The Non-GMO Project argues that it “creates unstable combinations of plant, animal, bacteria and viral genes that do not occur in nature or through traditional crossbreeding methods,” (The Non-GMO Project). GMOs are very prevalent in our contemporary food industry; The Non-GMO Project website states that “in the U.S., GMOs are in as much as 80% of conventional processed food,” (The Non-GMO Project). New traits are introduced to…
Genetically Modified Organisms have become a scientific phenomenon in curing world hunger. Unfortunately, over one billion people fall victim to one of the world’s leading causes of death, malnourishment. Many critics believe that GMOs do not provide enough nutrients and “good stuff”, therefore they believe that many people consuming GMOs are in danger. Others say that GMOs can fix world hunger because they can produce hundreds of GM foods at a time. My side is to believe that GMO shouldn’t be used to solve the problem of world hunger.…
A 2003 poll showed that 92 percent of Americans favor labeling genetically Engineered (GE) food. Why would this food need labeled? Because it was created by transporting a gene from one organism to another, therefore making it a new organism. This action is done in animals and plants alike. Genetically Modified Organisms (GMOs) are organisms whose genomes have been altered to favor certain characteristics (Diaz). For many years there has been breeding done in plants so as to have the desired characteristics, such as juicier tomatoes. The United States government does not see GMOs differently from breeding. GMOs, though, are formed by scientific procedures like cloning and Recombinant DNA technology. A primary reason…
Genetically modified organisms (GMO's) is something that I support, because they provide a long-term solution to food shortages, they have no negative health effects, and they help the environment.…
From a moral, social, and economic standpoint, I feel that Genome Editing wouldn’t be beneficial for future generations. I believe that we as a society should not utilize genome editing because it defeats the idea that everyone is unique and that by deleting certain genomes, it may result in them losing certain characteristics. We realize that certain disabilities may everyone different and may not have them struggling with something they love or that they wish that they didn’t have their disability. Their disability in a way, makes them who they are and they wouldn’t want to change that. However, we also have to take in account of how expensive this procedure is and how not a lot of people may be able to afford this. Hence, I believe that…
The controversial issue of genetically modified foods, commonly known as GM’s, has only gained the attention of millions, since it became a prominent and highly debated global issue. Genetically modified foods are created when the genes of an organism are engineered and modified to create a new or enhanced version of that organism. The process of using different genes from different sources to genetically modify foods led to public outcry and sometimes, praise. People in support of genetically modified foods claims it will enhance the quality of the food, improve the food’s resistance to pests and other harmful elements, lower food costs, and also increase food security for the future. However, those opposed to genetically modified foods claim…
How many times have you eaten something without reading the ingredients label? In 1982, Genetically Modified Organisms were approved for human use1 and eventually mass produced to the public as FLAVR SAVR Tomato in the late 1990s.2 Many may think that GMOs will end world hunger, but it is killing us rather than saving us. If food companies continue to advertise GMOs as the savior of America’s hunger problems, the country is in for a surprise. Any food product being sold to the general public should be removed and banned because GMOs contribute to the rise of illness, contaminate the plants in our organic farms, and humans were not made to play god.…
All over the world, there are a lot of people who do not know what the term genetically modified foods means. In fact, genetically modified food means crops that contain genetic material that has been changed artificially so as to produce the desired properties. In addition, a fierce debate has been prevailing over the benefits and dangers of genetically modified foods. A number of scientists think that genetically modified foods are safe, contain more nutritional value, and are cheaper to produce (Dreifu, 2008). However, opposing experts in the field of genetics differ with these lines of thoughts and argue that genetically modified foods are a danger to organisms in our ecosystem. For instance, they argue that continued production of genetically modified food might result in harmful effects on consumers and the natural environment. For this reason, I agree that genetically modified foods have negative effects on human beings and destroy the environment.…
Genetic engineering is a hotly debated topic in today’s political, ethical, and social arenas. Since its development, many have either renounced or championed this relatively new technology and for good reason. Genetic engineering is exactly what the name implies – a method of transforming the basic building blocks of life. This new door into the very fabric of life itself opens to reveal many potential benefits and cures to those with genetic diseases or malformations that drastically alter their quality of life, but it also reveals the potential for serious, irreparable damage to man’s very humanity. Among the loudest societal voices in this debate is the Christian Church. A vast number of people hold the Church to be the standard of moral right and wrong and as such, the Church’s opinions on many…
