Assertion: skin's cell | /r/HasProperty | nourished by diffused oxygen
Facets:
value: from the surrounding air
type: TRANSITIVE-OBJECT
value: almost exclusively
type: DEGREE
Source sentences:
text: The epidermis contains no blood vessels, and cells in the deepest layers are nourished almost exclusively by diffused oxygen from the surrounding air and to a far lesser degree by blood capillaries extending to the outer layers of the dermis.