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William Harvey and the movement of the blood
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What is there to do after you have finished reading William Harvey 's, On the Motion of the Heart and Blood? You begin your own dissection of the heart in order to find truth or faults in William Harvey 's investigation. I did just that. I was given two hearts to dissect; one was a moderately sized sheep heart with lungs attached, and the other was a massive cow heart. When digesting both hearts I had set different goals on what I was going to view. For instance, in the sheep heart I was primarily focused on the four openings going to and from the right and left ventricles of the heart. I also I need to keep in mind the relationship between the heart and the lungs because I could see them vividly. Meanwhile, for the cow heart I wanted to create …show more content…
Therefore, when studying the cow heart I observed whether it had all the components Harvey identifies; and it did. Although, because the cow heart did not come with the lungs attach it was a bit difficult to find these pulmonary artery and vein, but previously having found them in the sheep heart it gave me direction to where they might be. Once I located all of the valves I began to make my incision into the muscle of the …show more content…
Although, the dissection of the hearts was a great learning experience and a great argument for Harvey 's "On the Motion of the Heart and Blood" I did not find much interest in it because previously reading the Harvey made the investigation less of an investigation and more of a confirmation of Harvey 's theory of the heart. Most of my time dissecting the hearts was in order to find truth in Harvey 's words. Once I had a mental diagram of what the heart is like according to Harvey it was difficult to think otherwise while looking at a motionless heart and rebuttal Harvey 's arguments. With that said, it was interesting to see the analogous of a route with in the heart, as well as the fiber like branches he speaks of because it brings the magic of words into
The two short stories of “The Tell Tale Heart” and “The Black cat” by renowned author Edgar Allen Poe exemplifies the darkness of what a person can succumb to in certain situations. Both of these marvels share important realizations of thought and subconscious guilt’s. These short stories are used as an example of how two different people in two different situations can have the same reaction in the way of killing someone without remorse. Anger and hatred are major factors in simultaneous tells. The topic for this discussion is to discuss the similarities and differences of these two short stories by Edgar Allen Poe. Could there be more to what actually happens? Do both characters of these stories experience real supernatural events which cause them to lose it or is it a mental reaction which causes the mind to do things that are not
To me, the challenging part of the book was reading a book on a topic that I do not know much about. I am starting to become familiar with the legal system, however I am nowhere near that of a lawyer. This is why I stumbled at times on some of the legal lingo that the book contained. In addition to that, I did find myself with a better understanding of our legal system. I felt like I was along for the ride on the whole legal process. Also, I would like to note that I thoroughly enjoyed the chapter on the autopsy because I thought it was very interesting how they performed those procedures in that time period. I loved the detail that the author went into when describing how it all took place.
The bond between humans and nature, it is fascinating to see how us has humans and nature interact with each other and in this case the essay The Heart’s Fox by Josephine Johnson is an example of judging the unknown of one's actions. She talks about a fox that had it's life taken as well as many others with it, the respect for nature is something that is precious to most and should not be taken advantage of. Is harming animals or any part of nature always worth it? I see this text as a way of saying that we must be not so terminate the life around us. Today I see us a s experts at destroying most around us and it's sad to see how much we do it and how it's almost as if it's okay to do and sadly is see as it nature itself hurts humans unintentionally
Else RW, Holmes JR. Cardiac pathology in the horse. Equine Veterinary Journal 1972; 4(1): 1-8.
Healing A Wounded Heart by William Orem story starts by, telling readers what happened during a quiet summer evening in 1893 and what happened right before Dr. Daniel conducted the surgery. While the story by K12 book, tells about the second year of the civil war in 1862 and why Dr.Daniel working at a hospital was special during this time. Daniel Hale Williams and Freedman’s Hospital By K12, gives readers more information on how he changed medical care. “One reason was that Dr. Williams insisted on cleanliness in the hospital. The operating rooms were scrubbed with antiseptic to kill germs and bacteria before each procedure. The staff was required to change their outside clothes and wear freshly cleaned clothes while at work in the hospital.
The development of the artificial heart began in the early 1950’s. The initial prototype, developed in 1970’s by the artificial developmental staff at the University of Utah, allowed 50 hours of sustained life in a sheep. Although this was called a success, the implantation of the artificial heart left the sheep in a weakened state. It wasn’t until late 1970’s and the early 1980’s where the improvement of the artificial heart actually received attention as a possible alternative to a heart transplant. The remodeled product of the early 1970’s did more than just the 50 hours of sustained life; it enabled the cow to live longer and to live a relatively normal life, with the exception of a machine attached to the animal.
The science and history of the heart can be traced back as far as the fourth century B.C. Greek philosopher, Aristotle, declared the heart to be the most vital organ in the body based on observations of chick embryos. In the second century A.D, similar ideas were later reestablished in a piece written by Galen called On the Usefulness of the Parts of the Body. Galen’s thesis was that the heart was the source of the body’s essential heat and most closely related to the soul. Galen made careful observations of the physical properties of the heart as well. He said “The heart is a hard flesh, not easily injured. In hardness, tension, in general strength, and resistance to injury, the fibers of the heart far surpasses all others, for no other instrument performs such continues, hard work as the heart”(Galen, Volume 1).
Have you ever felt the urge to know how it feels to be insane. Have you wonder how it would feel to be rid of something that haunted you for eight days. Have you felt the thrill of getting rid of it by ending it. I might be a little crazy but, I strongly believe that tell tale heart is appropriate for the 8th grade standard. “What is the Tell Tale Heart?”, you my ask. Tell Tale Heart is a horror genre story that is about a man who suffers from a mental disease, and he lives with a old man that never harmed him or wronged him. What made him kill him was because of the old man’s eye. “It was like a vulture’s eye” (pg.89) so he stalked him in his sleep every night for seven days just to see the old man’s eye open. His verge to insanity he was not stable. He was already ill, but instead of seeking for help he states that it sharpened his senses. He stated that he was trustworthy (no end mark; reread this run-on
Chapter 2: Mary Roach goes on to explain the stages new students for anatomy. Some of them successfully graduate by their maturity and tolerance of handling dead corps. She also explains the importance of cadavers as they are a process for crime results.
In Labs 22 through 26, my lab partner and I were assigned a fetal pig to perform a dissection on in order to understand anatomy, the study of an organism’s structure1, and physiology, the study of the functions and activities of a living organism2. Throughout these labs, we studied the structure of the fetal pig and performed experiments to understand four system processes: digestion, cardiovascular, respiratory, and excretory. Dissecting an organism, physically moving and seeing the different portions of the organism, especially of a fetal pig, is very important. This helps in the understanding of the skeletal structure and what series of physical and chemical processes the mammalian species body performs in order to survive.
The heart is two sided and has four chambers and is mostly made up of muscle. The heart’s muscles are different from other muscles in the body because the heart’s muscles cannot become tired, so the muscle is always expanding and contacting. The heart usually beats between 60 and 100 beats per minute. In the right side of the heart, there is low pressure and its job is to send red blood cells. Blood enters the right heart through a chamber which is called right atrium. The right atrium is another word for entry room. Since the atrium is located above the right ventricle, a mixture of gravity and a squeeze pushes tricuspid valve into the right ventricle. The tricuspid is made up of three things that allow blood to travel from top to bottom in the heart but closes to prevent the blood from backing up in the right atrium.
... that it combined the perfect amount of medical history, scientific fact and storytelling; creating a brilliant account that kept me wanting to find out more. It was full of interesting information that helped me to understand more about the cholera epidemic and the views of public health and medical practice of the people in 1854 London.
It was placed on a slide, a couple drops of water was placed on the slide to keep it moisturized. Next, we used a microscope to observe the heart beating in the transparent animal. According to the lab report on page 98 the normal heartbeats are about 350 per minute. By using a pencil and paper, we made a small dash for every heartbeat over a 15 second interval. Than we continued to repeat the observation of the heartbeats 3 more times for a total of 4 observations. We than totaled up the number of dashes and calculated the average of the four 15 second observations, this was labeled “Normal Heart Rate” on Table 1. Next we added 1 drop of an “unknown” solution that was assigned, we made sure to determine the average normal heart rate before doing do. The same procedure outlined above was conducted. The records were than placed in table 1. We than used water in replace of the unknown solution. The same procedure was conducted, we analyzed whether the Daphnia had recovered or not. Lastly our records were compared among our
This dissection is used to teach students about evolution as well as how each part of the body works. In this dissection, students are studying the anatomy of the frogs. The students were not given a direct protocol to follow. Students are given a video to watch and take notes, in order to develop their own protocol. Students are allowed to use and resources given to them.
Invasive and interventional cardiology is the study of a group of methods in which diagnostic testing and non-surgical interventional treatments are used for treating patients who suffer from various heart diseases and disorders such as atherosclerosis (hardening of artery walls) and coronary artery disease (plaque build-up in coronary arteries). This field covers a variety of therapies ranging from stents to intravascular ultrasounds. Invasive and interventional cardiology began with the birth of catheterization, starting from the early ancient Egyptians, going back to 400 B.C. During 400 B.C., catheters were fashioned by hollow reeds and pipes were used on cadavers to study the function of cardiac valves. Then, in 3000 B.C., ancient Egyptians performed the first types of catheterization which started from the bladder using metal pipes (Choudhury, Rahman, Azam, and Hashem 75). With the very basic beginnings of inserting pipes and tubes, these ideas began to shape the minds of doctors. The first major breakthrough that led to the birth of catheterization was a description of blood flow and blood itself by William Harvey in his “earth-s...