Human respiratory system,artwork

Numéro d’image : 11638488
Human respiratory system,artwork
Human respiratory system,computer artwork. The trachea (windpipe,white,upper centre) carries air from the mouth (upper left) and splits into two bronchi,one for each lung (blue). Inside the lungs the bronchi further divide into many bronchioles (small,white). Each bronchiole becomes smaller,finally ending in alveoli (tiny air sacs,not seen),which are the site of gaseous exchange,where oxygen enters the blood and carbon dioxide is removed. Oxygen dissolves in the moist surface of the alveoli and passes into capillaries (oxygenated blood vessels) that carry it into the bloodstream. Carbon dioxide passes out of venules (deoxygenated blood vessels) into the alveoli and is exhaled through the lungs
Licence : Droits gérés
Crédit: Science Photo Library / Dalhoff, Henning
Taille de l’image : 3543 px × 4961 px
Model Release : Non requis
Restrictions : -

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