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Friday, 6 November 2020

Heart Dissection - Science

 Hi everyone, this blog post is going to be about what we did in Science at Tuesday. At Tuesday, we dissected a pig's heart and here are some questions about the experiment that we did. Before we did this experiment, we have also been learning about the hand. Learning about the parts of the heart and how they function. As we were doing the experiment, our teacher said that there were two things that are not included in the heart. It was the Atrium and the tubes. But luckily, we actually had the Atrium on heart and got to see what it looks like. Here are some questions about the Heart Dissection.

What have we been learning about?

The Heart Dissection that we did pretty much sums up the things that we learnt, because we were also learning about Blood and it relates to the heart. The Circulatory System that we were also learning about relates to the Blood which again, relates to the Heart. Almost Everything that we learnt about connects to this Dissection.

The first thing we learned about that mainly relates to the blood was the circulatory system, if you don't what the circulatory system is. It is an organ system that spreads or permits the blood to circulate in the body. This is to make sure the blood is surely able to transport the nutrients all over the body. If we don't have a circulatory system our blood wouldn't be able to transport the nutrients our body needs. This is because of gravity, our blood would just be at the bottom of our body. 

We had also learned about the parts of the heart, as you probably know on a diagram you usually see red and blue veins. This is because the blue veins are carrying deoxygenated blood and the red veins are carrying oxygenated blood. On the right side of the heart is where the deoxygenated blood needs to go through. so it has less muscle this is just so it can get through to the lungs to get oxygen. Then it will come back to the heart as oxygenated blood, to be put on the left side the being pushed throughout the whole body. This is why the right side only has a little amount of muscle because the lungs are very close to the heart. On the other hand, the left side of the lungs needs more muscle because they need to push the blood throughout the whole body. 

Why are we dissecting a Heart?

To learn and identify the different parts of the heart. To understand how they work and why they are needed. Being able to analyse everything that is in the heart.

What are the parts of the heart? did you see them?

Most of the class did not have an atrium and veins because usually the top of the heart would be cut off along with the atrium and veins. So we were lucky to have an atrium, but not the vein, we were also able to identify. The left and right sides of the heart, by feeling for the side which has more muscle. We also saw the valve, which is a thick layer of tissue that separates the left and right sides of the heart. We noticed that the valve was pretty thick we were told that it was so oxygenated and deoxygenated blood wouldn't mix together. We were also able to see the ventricles which looked pretty stringy. 

Did you enjoy the dissection? why/why not?

I enjoyed doing the dissection because I was able to put my self to the test to see if I could actually name the different parts of the Heart. I was able to touch it and do dome of the cutting that was needed to be done so that we could really see what was inside. It was also fascinating because I was able to see what a heart actually looks like and feels like in real life.

Here is a short clip of me and my group dissecting the heart. This video was muted because it was too loud in the background.:





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