The Philtrum
skin.
Mustache
The indentation above the upper lip and below the nose is called the Philtrum.
The area is called the philcrum. The pit in the middle of the philtrum is called the sulcus. The two ridges (lines as you say) are called the philtral rdiges. The philtrum joins the nose at the area called the columella. The philtrum joins the lip at the place called the tubercle.
Ledger lines :)
turtles
Those little lines above or below a music staff are called ledger lines.
A nose with a high bridge or a raised upper portion, often called a Roman nose. Check the link to the Answers.com entry on prominent nose below for much more information.
The part of your face that is between your nose and mouth is called a philtrum. A philtrum is the vertical groove on the surface of the upper lip, and below the septum of the nose.
you draw a nose by making strokes and lines
good lines go in sitcoms, bad lines go in your nose.
Lines added to the stave when notes are below or above the top of the stave are called "ledger lines" or "leger lines". They can occur in any stave indicating an instrument with melody.