My Dissection: My Experience In Aesthetics

R E V I E W S H E E T 30 Anatomy of the Heart

Oxygen poor blood fills the right atrium from either the superior or inferior vena cava.

Exercise 27 Activity 1 Surface Features of the Heart and Location (7 points total) Lab Activity 2

During this lab, many procedures needed to be completed. This dissection took a week. The dissection required many steps. This dissection required an understanding of how the body works and what the organs look like. The fetal pig dissection was helpful in learning

The SA node is the primary pacemaker of the heart. It starts the heartbeat by spontaneously contracting, causing the rest of the heart to contract in a wave.

Sus scrofa, or the domestic pig is a member of the class Mammalia and the order Artiodactyla. Since we as humans are also a member of class Mammalia, we have a good deal in common biologically with pigs, although we might not like to think so. Since we have a good deal in common, it is very helpful for us to study these animals both anatomically and physiologically. We do this when we test medicines on pigs, perfect surgical procedures on pigs, and even when we used to use pig valves for replacements in human hearts. Thus the pig is a first-rate example of a mammal and the purpose of this lab is to recognize the specific similarities between the pig and ourselves as humans. To accomplish this we

• sinoatrial node- is the impulse-generating (pacemaker) tissue located in the right atrium of the heart, and thus the generator of normal sinus rhythm.

Initially when seeing the fetal pigs, I was completely disgusted and figured I could not even look at them in the sink, let alone look at them when they are dissected. As my group pinned down the fetal pig and tied it’s limbs out of the way, I began to get more comfortable with the fact. As the dissection progressed, through observing the mouth and the thoracic cavity on the first day and the abdominal cavity on the second day, I became less grossed out. Observing the organs was interesting and I felt like it was a useful representation of what human organs are like, since it would not be ethical to use an actual human to dissect. I learned the difficulties that surgeons have to endure when performing a surgery. I can only imagine the high-pressure

[Today in class we participated in a pig dissection, we worked in groups of two. The objective of this assignment was to recap what we learned about the body's organs. The organs we were instructed to cut out the pig were the large and small intestine, lungs, kidneys, heart, stomach, liver, bladder and reproductive which was the ovaries for my partner and I because we had a female pig. Once we took the organs out the pig we had to place and label the organs on white construction paper. Our instructor informed us to receive extra points we needed to cut out the brain and the both eyeballs.

The past two weeks of dissection have been very valuable learning opportunities and extremely enjoyable. Dr Molyneux and the demonstrators were so helpful and caring; I felt they truly made a difference to how much I understood from this dissection experience. As well as this, I feel very privileged to have been given this opportunity to dissect a human body and would like to thank the individual who kindly donated their body for this purpose.

For the past two-hundred years, dissection of the human cadaver has been the gold standard for teaching aspiring medical professionals the networking and layout of the human body. Surprisingly, cadaver usage has had a rather curious history.

1. The pulmonary circuit is supplied by which ‘side” of the heart? The systemic circuit? The right atrium

Dissection has many benefits. The experience of dissection is unforgettable. “Things you can actually touch usually stick in your head better,” according to Dr. Damon Scoville. Dissection is an approach to science that creates a lasting impression. Students gain many things from an experience with dissection. Some of which include respect for life, and necessary skills for dissection that will be useful later in higher level classes. The hand’s on job really allows the student to gain a visual an understanding. They learn the true positioning of organs and have the opportunity to feel them while dissecting. The 3D view and texture friendly experience are things not offered in textbooks or on screens. (5) Models and paper do not do justice or serve as a sense of discovery. As Mr. Roger Kassebaum states, “If you are going to be a surgeon or a veterinarian, that tactile feedback is likely important.” The procedure for dissection can be complex. With this complexity comes the opportunity to teach students motor skills, how to follow directions, observation and comparison skills, and the relationship between tissues and organs. (5) It is pretty evident that the educational advantages of dissection are great. Mr.

After doing my Exploration of Aesthetics Paper last week, I decide to take it a step further. In my exploring the night sounds, it was hard to focus because of the loud sounds of the cicadas. I really didn’t know much about the insects except they come every 17 years and are really loud and everyone I know didn’t like them, so I didn’t because I don’t like bugs. However, a friend of mine posted a video and I watched it on cicadas. It changed my whole view on how I look at the insects at this point. They are beautiful creature and tell a story just like humans. We all have purpose in life and so does the cicadas. They live underground for 17 years. On a warm night they emerge and surface the land. They connect with each other, just like little children wanting to play with their friends after not seeing them for a long time. Then they transform to begin their final life on earth. The process is like giving birth as a human or letting out the lost soul and finding god for the first time. They become adults and search for their mates when shell hardens. Synchronized choir, we all call noise, is their mating call. They are finding love for the first time. They come in all colors, it’s sad watching the video

The S-A node signal is delayed by the atrioventricular node to allow the full contraction of the atria that allows the ventricles to reach their maximum volume. A sweeping right to left wave of ventricular contraction then pumps blood into the pulmonary and systemic circulatory systems. The semilunar valves that separate the right ventricle from the pulmonary artery and the left ventricle from the aorta open shortly after the ventricles begin to contract. The opening of the semilunar valves ends a brief period of isometric (constant volume) ventricular contraction and initiates a period of rapid ventricular ejection.