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The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.
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Smoking severely damages the respiratory system, it may cause COPD or lung cancer.
When producing sound, the vocal cords are vibrated by the air flowing out of the lung.
Colorless, odorless, heavier-than-air gas. Necessary for the photosynthesis of plants.
Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
A blood clot that forms in the deep veins of the lower limbs can cause a fatal pulmonary embolism if they enter the lungs.
Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.
A colorless, odorless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.
The ribs, the sternum and the spinal column form the skeleton of the chest.
The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
Human blood consists of blood cells and plasma.
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.