Top one, closest to your fingers is the heart line. below it is the head line and the last one,(curved around thumb) is the life line.
Coplanar lines that do not intersect are called parallel lines.
The lines that cross at a 90 degree angle are called Perpindicular lines.
"skew" lines
Fault lines
skewed lines
vanes
by hands
The lines that extend the staff are called ledger lines.
I believe that the lines in your hands are the grooves from when you put all your fingers close together they are the wrinkles that you are making,i don't have a clue if that is right but that is what i think.
They are called lines
The lines for depression are called hachured lines
The lines for depression are called hachured lines
They are simply just called lines.
East-West lines are called lines of latitude. North-South lines are called lines of longitude.
The lines are called perpendicular lines.
The lines are called rungs.
because you was born like that because as you grow your hand grows and with this growth yo have moved and formed these folds and crease's which are what we later learn to recognize as our hands lines