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Let's dissect a sheep heart. The materials that we are going to use are a scapegoat, tweezers, scissors and colored straws.

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First, we are going to identify the blood vessels. To do this, we look at the top of the heart.

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The yellow straw is the outer artery, the orange the pulmonary artery, the pink the vena cava and the green one the pulmonary vein.

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We can see that the arteries have thick and large walls, while the veins have thinner and smaller walls.

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The heart has a flatter inside and a more convex side.

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To locate the right and left sides of the heart, we cut on the convex part 1 cm from the line.

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That's a blood clot.

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That's the left ventricle and behind the bulbs is the left atrium.

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Those elastic threads are the mitral valves.

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Now we are going to cut the right side.

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It doesn't look very good, but the right atrium is smaller located at the top behind the valves,

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and then the ventricle which is larger.

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These are tricuspid valves.

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The walls of the left side where the oxygenated blood flows are very thick.

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In the middle is the septum that separates the two sides

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And the walls of the right side where deoxygenated blood flows are much thinner

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To identify the sigmoid or semilunar bulbs, we are going to cut through the aorta

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That are the sigmoid or semilunar bulbs

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Now we are going to do the same with the pulmonary artery

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and that are the sigmoid or semilunar bulbs of the pulmonary artery and that's all i hope you like it

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bye