Category: The Body

Tanno and Iguda have been shrunk down in their minisub called the Microwidget. They’re using it to travel inside the body of their friend Professor Wendy and find out why she’s feeling ill. The Microwidget is small enough that they…

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After Tanno and Iguda were swallowed, they travelled down a tube called the oesophagus that joins the back of the throat with the stomach, where digestion of food continues. The stomach walls contain muscle which, when it contracts, churns the…

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The small intestine is made up of three parts: Duodenum Jejunum Ileum The first part of the small intestine is called the duodenum. The acidic chyme that is leaving the stomach would damage the lining, so to make it safe…

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When Tanno and Iguda shrank further, they became small enough to be absorbed through the wall of the small intestine and into a capillary, which is the smallest type of blood vessel. Blood looks like a simple red liquid, but…

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Tanno and Iguda are travelling around Professor Wendy’s body in her bloodstream. The blood is being pumped through the blood vessels by a large muscular organ called the heart. All heart diagrams are drawn as if you are looking at…

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The lungs are the major organs responsible for getting oxygen into the blood and removing carbon dioxide as a person breathes. Breathing is the movement of gases into and out from the lungs, and is also called ‘ventilation’. Breathing in…

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The brain is made up of millions of nerve cells, and is part of the nervous system. It is shaped like a mushroom, and the ‘cap’ is called the cerebrum, with a very folded surface. The cerebrum receives messages from…

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Although Tanno and Iguda enter the eye from the back, light enters the eye from the front. Image credit: SOMSO® model from Adam,Rouilly This model shows how the whole eyeball sits inside the eye socket. There are muscles around the…

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The undigested food is moved by peristalsis from the small intestine and into the large intestine. Water is absorbed back into the body in the colon, and what is left is stored in the rectum, the lower part of the…

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The pancreas has two very important (and very different) jobs. One of these is to make digestive enzymes, which are released down a tube called the pancreatic duct into the small intestine. This is the opening Tanno and Iguda first…

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