<P> The philtrum ( Latin : philtrum , Greek : φίλτρον philtron , lit . `` love charm '' ) , or medial cleft , is a vertical groove in the middle area of the upper lip , common to many mammals , extending in humans from the nasal septum to the tubercle of the upper lip . Together with a glandular rhinarium and slit - like nostrils , it is believed to constitute the primitive condition for mammals in general . </P>
<P> The philtrum ( Latin : philtrum , Greek : φίλτρον philtron , lit . `` love charm '' ) , or medial cleft , is a vertical groove in the middle area of the upper lip , common to many mammals , extending in humans from the nasal septum to the tubercle of the upper lip . Together with a glandular rhinarium and slit - like nostrils , it is believed to constitute the primitive condition for mammals in general . </P>
what are the lines above your lip called
what are the lines above your lip called
philtrum medial cleft
philtrum medial cleft