Eating healthy

The composition, operation and stamina of the human body and the way one feels greatly depend on diet. Let’s see how we can eat healthy every day.

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Glands connected to the duodenum

The pancreas and the liver empty digestive juices into the duodenum.

Donating blood

Donating blood can save lives, since patients often need various blood products for their recovery.

The ear and the mechanism of hearing

Ears convert the vibrations of air into electric signals which are then processed by the brain.

Thyroid gland

An important endocrine gland producing hormones that affect metabolism and the calcium balance...

Vision correction

Concave and convex lenses are used for the correction of shortsightedness and farsightedness.

Muscle tissues

The three types of muscle found in the human body are the smooth, the striated and the cardiac...

The upper digestive tract

During swallowing food travels from the mouth cavity into the stomach.

The human eye

The eye is one of our most important sense organs. When stimulated by light, electric impulses...

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