1 As nouns the difference between xenograft and heterograft is that xenograft is a heterograft while heterograft is a tissue graft taken from a species different from that of the recipient. is that xenograft is to heterograft while heterograft is to perform a tissue graft using tissue taken from a species different from that of the recipient.
Portland, Oregon. For other uses, see Portland (disambiguation). Portland (/ËpÉËrtlÉnd/) is a seaport and the largest city in the U.S. state of Oregon and the seat of Multnomah County. It is in the Willamette Valley region of the Pacific Northwest, at the confluence of the Willamette and Columbia Rivers.
Named after the Multnomah Indians, who were part of the Chinookan tribe, which lived on the eastern tip of what is now, Sauvie Island, in the Columbia River. The County is home to Portland, the largest city in Oregon. Portland became the County seat on 1854. The smallest county in Oregon, it is bounded by Columbia County and the Columbia River on the north, Washington County on the west, Clackamas County on the south, and Hood River County on the east.