Salivary secretion. Light microscopy footage of saliva being produced inside the human mouth. Saliva is an alkaline fluid that aids the swallowing of food. It contains enzymes that begin the breakdown of the starch in food. It also helps protect the mouth against acidic foods. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Berrod, Thierry |
Model Release : | Non requis |
Durée : | 6 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |