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The Human Heart

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Introduction

right left The heart is spilt up into two halves. There is a left half and a right half. The left half pumps oxygenated blood around the body. The right half only pumps deoxygenated blood back to the lungs. The left hand side there fore has to be stronger, and has a thicker muscle surrounding it. ...read more.

Middle

The valves themselves didn't appear to be that strong, but they were held in place by tendons. These tendons were small, but very tough. They were difficult to snap by hand, but cut fairly easy with a scalpel. They kept the valves in place and only let the valve move one way. ...read more.

Conclusion

This was extremely difficult to cut through. This made the two separate halves more distinctive. The lamb's heart which we were looking at, had a hard layer of white fat surrounding it. This was a tough substance and looked a bit like chicken when you cut into it. Lamb's mostly eat grass, which is healthy and has all that fat around the heart. So just imagine the amount of fat surrounding our heart on a diet like ours. ...read more.

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