Owners become concerned due to increased ocular redness caused by excessive exposure of the conjunctival surfaces (delicate membranes lining the eyelids and covering the eyeballs) due to the enlarged eyelid opening, or may complain about the poor cosmetic appearance due to the large amount of visible sclera. (cavaliercanada.com)
It keeps the alveoli's delicate membranes — which measure less than half a millimeter thick — from sticking to each other when you exhale, emptying the oxygen from your body. (discovermagazine.com)
They don't grow here; they wait until your hands come in contact with the delicate membranes in your nose, eyes, or mouth, where they can infiltrate cells and duplicate themselves. (discovermagazine.com)