Use the key choices to match the following definitions with the correct terms: Smallest respiratory passages Separates the oral and nasal cavities Major nerve stimulating the diaphragm Food passageway posterior to the trachea Closes off the larynx during swallowing Windpipe Actual site of gas exchange Pleural layer covering the thorax walls Autonomic nervous system nerve serving the thorax Opening between vocal folds Fleshy lobes in the nasal cavity that increase its surface area Close the glottis during Valsalva's maneuver Closes the nasopharynx during swallowing The cilia of its mucosa beat upward toward the larynx A. Vagus B. Palate C. Uvula D. Epiglottis E. Trachea F. Esophagus G. Phrenic H. Glottis I. Bronchioles J. Vocal folds K. Parietal L. Trachea M. Alveoli N. Conchae

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18. determine whether each stateme blank space given. ach statement is true (t) or false (f). place your answer in the 8. when a cell is put into an isotonic solution, individual wat put into an isotonic solution, individual water molecules cannot move back and forth across the cell membrane. d. when a cell is put into a hypertonic solution, there is a net movement of water molecules across the cell membrane into the cell. c. when a cell is put into a hypotonic solution, there is a net movement of water molecules across the cell membrane out of the cell. d. the movement of any solvent across a semi-permeable membrane is called osmosis. e. carrier proteins have the ability to change shape and physically move molecules across the cell membrane. f. in facilitated diffusion, the concentration of the molecules to be moved across the cell membrane is higher inside the cell.