Every meridian of constant longitude joins the north pole to the south pole.
Up and down , through the poles.
North and south
Longitude lines run from pole to pole.
Lines of longitude run North-South.
Lines of longitude are also known as meridians. They run north-south and measure east-west.
Lines of longitude run north-south and measure east-west.
Every meridian of constant longitude joins the north and south poles.
Lines of latitude run east and west (like rungs on a ladder) and meridians (lines of longitude) run north and south
Each meridian of constant longitude is a semicircle that joins the Earth's north and south poles. They stay put.
At the poles, the idea of longitude is essentially meaningless. Take a few steps either way; your longitude will depend on which way you walked. Of course, from the pole itself every direction is "South", which makes navigation a little challenging.....
The direction of latitude is horizontal, while longitude is up and down. Lines of latitude run parallel to the equator.
North - South, or South - North depending where you are standing at the time of the question
Longitude
vertically