Nasalis may refer to:
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Proboscis monkey
The proboscis monkey or long-nosed monkey (''Nasalis larvatus'') is an arboreal Old World monkey with an unusually large nose (or proboscis), a reddish-brown skin color and a long tail. It is endemic to the southeast Asian island of Borneo an ...
(''Nasalis larvatus''), the only monkey in the genus ''Nasalis''
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Nasalis muscle
The nasalis muscle is a sphincter-like muscle of the Human nose, nose. It has a transverse part and an alar part. It compresses the nasal cartilages, and can "flare" the Nostril, nostrils. It can be used to test the facial nerve (VII), which suppl ...
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