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The ear converts the vibrations of air into electric signals which are then processed by the brain.
If someone is moving clumsily, we often say he or she has two left feet. But what does our left side have to do with being clumsy?
This lesson presents the harmful effects of addictions on the human body.
This animation introduces the organ systems of the human body.
People often spend up to 8–9 hours sitting each day; therefore, it is extremely important to learn the correct sitting posture.
Emergencies can happen anywhere, so it is important to know how to provide basic life support care.
In this lesson, you can compare the engines of cars and the human heart.
In this lesson you will find information about the discovery and classification of vitamins as well as about illnesses caused by vitamin deficiency.
This lesson presents the structure and functioning of the heart and how it can be protected.
Learn interesting facts about the structure and function of the human brain.
You can learn a few interesting facts about the human respiratory system.
A lesson about the structure of fats and oils and their role in the human body
Menstruation is a natural part of the lives of girls and women from puberty until menopause.
Humans have 4 types of teeth: incisors, canines, premolars and molars.
The ribs, the sternum and the spinal column form the skeleton of the chest.
Lymph vessels carry lymph to the blood vessels, while lymph nodes are integral parts of the immune system.
The pancreas and the liver empty digestive juices into the duodenum.
The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.
This animation demonstrates the parts of the head, the trunk and the limbs.
The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.
Our body's internal support structure to which skeletal muscles are attached.
Skeletal muscles form the active part of the locomotor system: they move the bones they are attached to.