Weeeee... We did heart dissecting for our Biology laboratory periods yesterday. Brought cow's heart from the market to use for this experiment. Thanks God we don't have to do any killing small animal things like frogs or hamsters. Phew!
The mammal has a double circulation, that is, blood flows twice through the heart for every complete circuit of the body. But how is the blood propelled from it? And how is the blood kept moving in the right direction?
It was an exciting morning when we walked into the laboratory seeing numbers of hearts laying on the dissecting trays. The lab assistant just simply washed away all those bloody stains on them right before we went in. So it is still considered fresh and some of us just couldn't bear the smell.
Lecturer first demonstrated the heart dissecting. Showed us how to identify the right and left atria, right and left ventricles, venae cavae, pulmonary artery, pulmonary veins, aorta, and bla bla bla. Then later on we were left to examine the heart ourselves by group. It was fun having the chance to hold the dissecting instruments and cut open the heart.
Finally when everything is done, we are free to do anything we like with those hearts. The heart is in my hand now! Kakaka. I sliced it into pieces, seasoned them with some spices, and here my delicious recipe is done. Freshly fried beef, anyone? ^_^
It's me holding the dissected heart, photo taken via my Nokia 6230.
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