The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
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Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
Human blood consists of blood cells and plasma.
The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.
The ribs, the sternum and the spinal column form the skeleton of the chest.
Adrenaline, also known as epinephrine, is a hormone produced in our body in stressful situations and plays an important role in the fight-or-flight response.
The spinal cord is the part of the central nervous system running inside the spinal column from which spinal nerves branch out.
The three main types of blood vessels in the human body are the arteries, the veins, and the capillaries.
A blood clot that forms in the deep veins of the lower limbs can cause a fatal pulmonary embolism if they enter the lungs.
The cause of a heart attack is the blockage of a coronary artery. It is one the most common causes of death.
This animation introduces the most important organ systems of the human body.
Skeletal muscles form the active part of the locomotor system: they move the bones they are attached to.
Lymph vessels carry lymph to the blood vessels, while lymph nodes are integral parts of the immune system.
The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.
The central nervous system consists of the brain and the spinal cord, the peripheral nervous system consists of nerves and ganglia.
This animation demonstrates the fine molecular structure and mechanism of muscles.
This scene presents the location, anatomy and functioning of the central organ of the human circulatory system.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.
During swallowing food travels from the mouth cavity into the stomach.
The urinary system serves for the removal of harmful and useless materials from the body.