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Facts About the Hand

Posted by Joanna Culley

Facts About the Hand

On average, each hand contains 19 bones. And each fingertip has a fingernail at the end, which are hard keratin structures like the hair that allow us to have an even better hold of objects and perform small and more intricate tasks.

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Facts About the Teeth

Posted by Joanna Culley

Facts About the Teeth

Teeth have several layers with different functions and characteristics. The first one being the enamel, which is the white, external and visible part of the tooth. Underneath, there is a layer of strong tissue called the dentin, where microscopic tubes are located.

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Facts About the Respiratory System

Posted by Joanna Culley

Facts About the Respiratory System

Respiration is a larger process involving much of the respiratory system, and breathing is a part of it, by inhaling oxygen and releasing carbon dioxide. At the same time, the body coordinates the external respiration, where gas exchange between the lungs and the bloodstream occurs

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Facts About the Human Knee

Posted by Joanna Culley

Facts About the Human Knee

Knees are the biggest, most stressed and most complex synovial joints in our entire body, and one of the most important along with the hip. They allow our tibias, kneecaps, fibulas and femurs to be attached and hinge, so we can run, walk, jump, kick, among other different physical activities.

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Facts About the Human Hip

Posted by Joanna Culley

Facts About the Human Hip

The hip is the part of our body that bears most of the weight, and it is located beneath deep layers of strong supporting muscles and ligaments.

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