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Dr. Textbook has something about the body. Check it out.

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Hello!

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Welcome to another demonstration of my technological brilliance.

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I have modified this ordinary television set

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to look inside the human body to see how the human body works.

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First, let's start with the respiratory system which helps us to breathe.

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Oxygen is brought into our body through the mouth, nose, and trachea

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into the lungs where it can be absorbed into the bloodstream.

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Next, we have the circulatory system.

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This system includes the heart which pumps the oxygenated blood

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wherever it is needed in the body through a vast network of arteries, veins, and capillaries.

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Boy, this demonstration is hard work and it's beginning to make me hungry

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which leads to the digestive system.

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This system uses the teeth, mouth, esophagus, stomach, intestines, and more

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to help the body take the nutrients from the food we eat, yum-yum, and turn it into energy.

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And before we look at the other body systems,

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I'm going to boost the power of my latest invention to see what makes the body really tick!

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Not a very good idea!