Assertion: lung | /r/CapableOf | exchange respiratory gases
Facets:
value: to this end
type: PURPOSE
Source sentences:
text: To this end, the lungs exchange respiratory gases across a very large epithelial surface area—about 70 square meters
text: To this end, the lungs exchange respiratory gases across a very large epithelial surface area—about 70 square meters
text: To this end, the lungs exchange respiratory gases across a very large epithelial surface area—about 70 square meters
text: To this end, the lungs exchange respiratory gases across a very large epithelial surface area—about 70 square meters