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Learn how the human body is built up and about the differences between men and women.
Careful tooth brushing is an important part of oral hygiene.
The head's position and movement is detected by the inner ear.
This lesson presents the structure and functioning of the human urinary system.
Smoking severely damages the respiratory system, it may cause COPD or lung cancer.
The composition, operation and stamina of the human body and the way one feels greatly depend on...
The cause of a heart attack is the blockage of a coronary artery. It is one the most...
The knee joint is made up by the femur, the tibia and the kneecap.