Heart Dissection - Science

Hello everyone!

In science, we recently did an interesting activity, we had dissected a heart, a pig's heart in particular. Before that, we had been learning about the circulatory system and the parts of the heart. I didn't actually partake in the activity I just took the photos for my group, it looked fun on the side-lines. Also, we were lucky enough to have an Atrium on our heart, because of our teacher Ms, Abernethy. She mentioned that the heart wouldn't have an atrium as the butcher's cut off the top of the heart. 

What have we been learning about?

This heart dissection really sums up most of what we have been learning, because blood relates to the heart. The circulatory system relates to the blood which relates to the heart, the respiration system. Relates to the blood which relates to the circulatory system and leads to the heart. Everything connects together because they all lead to the heart, that why this heart dissection is important. 

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 effectively learn and identify the different parts of the heart in real life, as it is different from just a diagram. If we saw it in the flesh we would be able to properly see and identify the different parts of the heart. Being able to analyze everything 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 actually did not take part in the dissecting activity, as I was the one filming for my group, but I was still able to enjoy it. Since I was watching close-up through my phone as I zoomed up, I thought it was really cool. This was because I was able to still see how the dissection was done, I just didn't touch it. 

Here is a short clip of our hard dissection. (it is muted as there was a lot of background noises)

Arthritis Research - Science

In our science session, we were able to do an extra research task about arthritis, arthritis is a disease. It is a disease that involves a problem with your joints or caused by the immune system attacking the synovial fluid. 

I had created a presentation through 'Canva' and I think I have included a decent amount of information. 

Hands - Hurumanu 2 - Science

In Hurumanu 2 we have been learning about bones, like the hips, arms, skull, hands, etc. We have been studying this through 'Quizlet' doing tests, spelling, and other learning activities.

The bones in our hands are essential to provide structure and flexibility to the soft tissues. Our hands are important and very useful to us humans because we can grip on things and hold things. For most of the creations today you have to use your hand whether it is to use it or build, to do practically 90% of your daily tasks. You need to use your hands, so your hands are essential. 

The movement of your hand is started by using your forearm muscles, only the thin tendons of these muscles are found directly on the hand. The extender tendons are used for stretching the hand this tendon runs from the back of the hand to the tips of the fingers. The flexor is used for bending which located in the palms of the hand to the fingers. 

Tendons - Tendons are a type of tissue that contain many fibers, this tissue is what joins the muscle to bone. 

Joints - The joints keep our bones together and also support the movement.

Bones - They provide structure for the body, it also protects the vital organs also provides a framework for the attachment of soft tissues. Last but not least it stores vitamins and minerals and releases them when needed. 

Ligaments - The ligaments are what connect the bones together, and also provides a limited amount of movement between your bones.

Muscles - They are what allow us to move without muscle we wouldn't be able to move because our bones can't move without them.

Cartilage - It is a connective tissue that coats the surface of our bones. What it really does is keep our joint motion fluid, by cushioning our bones against impact.

I hadn't created one of the hands as I wasn't here but I do have an example photo.