The turbinates are covered by spongy vascular cells which can expand or contract to open or close the nasal pathways. This is achieved by the breathed air passing through narrow passageways formed by three nasal turbinates in each nostril. Found insideJohn Logie examines the rhetoric of the ongoing debate over peer-to-peer technologies, in particular Napster and its successors. In Black Power TV, Devorah Heitner chronicles the emergence of Black public affairs television starting in 1968. This edition includes the full book as well as a comprehensive companion with historical notes, character overview, themes overview, and chapter summaries.
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