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Assuming you're doing this for someone else:1) pull the plastic slide down so that the cannula will definitely be large enough to fit the patient2) hold the cannula with both hands so that the prongs are facing away from you and curving down3) put the prongs into the patient's nostrils4) pull the tubes over and behind both of the patient's ears at the same time5) adjust the plastic slide back up so that the cannula isn't tight enough to bother the patient yet the cannula won't slide off.
nares nares
James Nares died in 1783.
James Nares was born in 1715.
Robert Nares died in 1829.
Robert Nares was born in 1753.
Geoffrey Nares died in 1934.
Geoffrey Nares was born in 1917.
Owen Nares is 5' 10".
The plural form of "nares" is "nares". The word "nares" is already considered plural, referring to the nostrils or nasal openings.
nares are nostrils. the maxillary bones form the lateral margins of external nares/nostrils
Nares - nostrils, Pinnae - ears.