Evaluate the importance of various technologies, including Canadian contributions, to our understanding of internal body systems (digestive, circulatory or respiratory)
Technology. What is Technology? Technology is the usage and knowledge of tools, techniques, and, or is systems or methods of organization, or is a material product (such as clothing) of these things.Technology has evolved so much and can be found in almost everything. The use of technology has branched and expanded to help people in everyday life. From eating your breakfast in the morning, to brushing your teeth at night, technology helps our everyday routine easier. Technology has contributed to our everyday lives but the most important field that the technology does is medicine. Technology and Medicine have helped aid the sick people, find new cures, and so much more. Technology has also helped us find out about the different systems in our bodies, such as the circulatory, cardiovascular, digestive, respiratory, etc. All of this knowledge technology has given us has contributed so much to explore the human body and how it works.
The Endoscope
When surgery is needed your doctor may say that she'll be using an endoscope during your surgery. What is an endoscope? An endoscope is a small surgical video device used during procedures. The endoscope instrument is a lighted flexible instrument in which it contains a camera so a medical professional can use it to inspect interior organs. The first endoscope that was ever created was by Philip Bozzini in 1806 and was first introduced into a human in 1822 by William Beaumont, an army surgeon. It allows the surgeon to work with very small incisions by giving him visual access underneath the skin. During the procedure of using and endoscope, the doctor usually inserts the tube through an opening in the body, such as the mouth or the anus. In different situations the endoscope can also be inserted through a small incision. This endoscope procedure is to see inflammation or bleeding that don`t show up properly on x-rays. The main reasons to perform an endoscopy include symptoms such as bleeding, pain, or any change in bowel (Bowel: the canal between the mouth and anus) habits.
The Stethoscope
What is a stethoscope? It is an instrument for listening inside the body for external and diagnostic purposes. Stethoscopes are also often considered as a symbol of the doctor's profession. Before the Stethoscope was invented the patients were very limited to external observations. It was first invented by Rene Laeneec in France in 1816. Laennac developed a wooden stethoscope. As years pass the American doctor George P. Cammann developed the abinaural stethoscope in 1852 which then became the standard until 1940`s in which Rappaport and Sprague invented a new acoustic stethoscope which was two sided. The two sides were made to listen to the respiratory system or the cardiovascular system, each side only sends out high or low frequencies to the listener`s ears. The Rappaport-Sprague was later produced by Hewlett-Packard. HP's medical products then went to Agilent Technologies, where it became Agilent Healthcare. Agilent Healthcare was purchased by Philips which became Philips Medical Systems. Today here are still cardiologists who consider the original Rappaport-Sprague to be the best acoustic stethoscope. Today Rappaport-Sprague copies are now made in China currently sold for about $20.00US. The Rappaport-Sprague model stethoscope is heavy and short (18–24 in (46–61 cm)).
The Sphygmomanometer
What is a Sphygmomanometer? It is an instrument for measuring blood pressures, particularly in arteries. The Sphygmomanometer was invented by Samuel Siegfried Karl Ritter von Basch in 1881 and in 1896 Scipione Riva-Rocci invented a more easily used version. Later on, Harvey Cushing discovered this device in 1901 and popularized it. This instrument is consisted of an inflatable cuff, a measuring unit, and inflation bulb and valve. The inflatable cuff is to be put around your upper right arm and the inflation bulb is then to pump the cuff to restrict blood flow around the arm. Slowly, the doctor releases the air in the cuff to let the blood flow properly as he/she reads your blood pressure in the measuring unit. All of these machines have helped us cure millions of people and have been continuing doing so till this very day.
http://www.faqs.org/health/topics/28/Stethoscope.htmlhttp://www.medterms.com/script/main/art.asp?articlekey=15771http://en.wikipedia.org/wiki/Stethoscope
http://www.wisegeek.com/what-is-an-endoscopy.htmhttp://www.reference.com/browse/sphygmomanometer
" Artificial selection has resulted in plants that are more disease-resistant, cows that produce more milk, and racehorses that run faster. One must wonder what will come next. In the blog entry answer the following question - under what circumstances should humans be artificially selecting plants, if any? "
What does artificial selection really mean? Artificial selection is only a scientific term used to describe the breeding of plants and animals. These are used to favor different traits of an animal or a plant but are not necessarily for their their own needs to survive better in the wild. Just as they breed cows to produce more milk and more meat selectively through artificial selection. This is also known as selective breeding and unnatural selection. This process called artificial selection began thousands and thousands of years ago, and till today the process of artificial selection is still improving. As years and years go on, the crops and animals we produce now are from evolved plants and animals through artificial selection.
Do we really need this process called artificial selection? In my opinion, we really
do need artificial selection now because it is in our today's life cycle and if we do not artificially breed the animal traits that we need and want, I think we would not be able to produce enough meat, milk, crops, and etc. because our generations have evolved to consuming a high amount. The results of artificial selection is very noticeable and almost all the animals that we now artificially select doesn't look anything alike from their ancestors. For example, the Grey Wolf has been artificially selected in order to emphasize the less-aggressive traits of the canines, becoming a bulldog, collie, dachshund and other different types of dogs just as shown in the picture to the right.
Artificially breeding certain animals to attain the desirable traits that people want can be very useful but the use of this process has sometimes gone over the line. People have been breeding closely related animals to have a better chance of getting their desired traits from the animals. This is being done because some animals may acquire traits that most or all animals don't; therefore making the people breed closely related animals. The process of inbreeding are one of the potential dangers of too much artificial selection because this can cause a defect or genetic disorders to the animals. Selectively breeding animals can also essentially reduce the variation of the animal population.
Artificial selectio
n also occurs with plants and has successfully evolved. Plants like the "Brassica oleracea" has been artificially selected successfully. This plant evolved to become six different
plants (cabbage, broccoli, cauliflower, Brussels sprouts, collards and kale) Artificial Selection has it's pros and cons and I believe that this is a positive evolution in our generation. Just as the picture on the left, the corn has evolved from a plant called Teosinte. Artificially selecting plants have helped people evolve plants that are not edible nor desirable. Unlike animals, plants do not get diseases or any sort of disorder, so I highly recommend artificially selecting plants to evolve different plants for our own human needs.
All in all, my opinion of artificially selection is a good way to produce the things we want and need. Artificially selecting plants is a wonderful way of producing healthier, more desirable plants. But artificially selecting animals is a different story, because us humans do not know the limit of selective breeding , we only artificially select animals for our own human liking, which I find a bit disturbing. Lastly I think that artificial selection is a great way for achieving human desires on our plants but not for our animals.
http://library.thinkquest.org/C0118084/Gene/Genetic_variation/artificialselection.htmhttp://encyclopedia.farlex.com/artificial+selectionhttp://www.wisegeek.com/what-is-artificial-selection.htmhttp://www.messybeast.com/inbreed.htmhttp://www.learner.org/courses/essential/life/session5/closer1.html
do need artificial selection now because it is in our today's life cycle and if we do not artificially breed the animal traits that we need and want, I think we would not be able to produce enough meat, milk, crops, and etc. because our generations have evolved to consuming a high amount. The results of artificial selection is very noticeable and almost all the animals that we now artificially select doesn't look anything alike from their ancestors. For example, the Grey Wolf has been artificially selected in order to emphasize the less-aggressive traits of the canines, becoming a bulldog, collie, dachshund and other different types of dogs just as shown in the picture to the right.
n also occurs with plants and has successfully evolved. Plants like the "Brassica oleracea" has been artificially selected successfully. This plant evolved to become six different
plants (cabbage, broccoli, cauliflower, Brussels sprouts, collards and kale) Artificial Selection has it's pros and cons and I believe that this is a positive evolution in our generation. Just as the picture on the left, the corn has evolved from a plant called Teosinte. Artificially selecting plants have helped people evolve plants that are not edible nor desirable. Unlike animals, plants do not get diseases or any sort of disorder, so I highly recommend artificially selecting plants to evolve different plants for our own human needs.
screen embryos for any genetic disorders. Being able to genetically screen embryos, scientists can now perform In Vitro Fertilization (IVF). This technique involves the fertilization of the egg by the sperm in test tubes, outside the mother's body. This whole process is called "pre-implantation process" in which they choose an embryo through genetic screening and only the disease free embryos are implanted into the mother's womb. This also has made it possible to eliminate genetic disorders. From genetic screening parents can now pick and change the eye color, skin color, physical attributes and other physical traits such as intelligence, beauty, height, athletic ability, etc. can be also determined.
ty, it will certainly have a negative impact upon biodiversity and such. People will begin to increase in hate for those who are different, they will be social outcasts if they have genetic defects and the list goes on. Today people with genetic disorders are already starting to become social outcasts now because they have genetic disorders. Families that are rich can enhance their kids attributes and traits, while the less fortunate families cannot afford any of it. The negative contribution that bothers me the most in designing a baby is that some parents that choose their baby's future do not have the ability or freedom to choose what they want to be. All of these can increase the separation of our world's society today. 
ars.
e intoxicated by (CO2) Carbon Dioxide, polar bears in 1992-2004 are now being found in the oceans(MMS (Minerals Management Service) researchers).
