5 Bilder zum Thema "deoxygenated" bei ClipDealer

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Veins
Veins
The lungs are the primary organs of respiration in humans and many other animals including a few fish and some snails. In mammals and most other vertebrates, two lungs are located near the backbone on either side of the heart.
Microscopic View of Human Blood Vessels: Artery and Vein in Detail
human pulmonary and cardiac system

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