Human digestive system,artwork

Numéro d’image : 11609046
Human digestive system,artwork
Human digestive system,artwork. At top,food from the mouth forms a bolus that is swallowed down the oesophagus. At centre,the bolus is about to enter the stomach (arrow),which secretes acid that breaks down the food. Digested food then passes out of the stomach through the pyloric valve (lower left). Nutrients are absorbed in the small intestine which has a folded surface (centre right) with finger-like protrusions called villi (magnified view at centre left). The villi are lined with absorptive cells,passing nutrients to the blood vessels (red and blue). Lymph vessels (green) and the diaphragm (above stomach) are also shown
Licence : Droits gérés
Crédit: Science Photo Library / Dalhoff, Henning
Taille de l’image : 3628 px × 4837 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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