Had Blood vessels and Red blood cell Bio Practical the last practical. It was quite amazing to see all these. God really create a really cool body man. That is one awesome thing. The thicker and muscular blood vessels are the arteries to withstand the strong pressure. The thinner ones are the veins. The thickness is not needed as the blood pressure is already very low. However, Mr De Souza killed a fish. We should seriously consider calling SPCA. Although we got to see how the blood travels in the fish body, but poor fish. We told him that the blood was slowing down. After it was released back, the fish could not swim properly. In fact, upside down. It also had problems swimming. It was pronounced dead that afternoon. We still have the fish's dead body in the class. Getting it readyt for a proper burial.

Today had disection of Sheeps Heart. Really stinky but fun. EEWW! We used a stringe to clean the heart and wash out the blood, plus see how the vessels were conected to one another. It was abit gross. Then Mr De Souza came round to tell us what is what. The heart was kind of soft and spongy. We stuck our finders into the blood vessels to feel the ventricles. The thicker part was the left ventricle.

Then we made an incision along the wall and saw the valves. and then we compared it with the right one. The atriums were smaller than I thought. We stuck all the apparatus into the heart when we were done and called it a birthday cake. Then Grace meshed up all the fats cut of from the fatty heart and called it Chee Chiong Fun. LOL. There is photo if I am not wrong. Good bye

<3

Elaine