These appear a bit confusing by these descriptions. Of course we all know what Latitude and Longitude are. For clarification:
Longitude: Lines of Longitude are drawn from the North Pole to the South Pole, and are arranged heading from east to west. Lines of Longitude are also sometimes referred to as Meridians. All lines of Longitude meet at the North and South Poles (though on some map projections they all appear to be parallel and usually equidistant throughout).
Latitude: Lines of Latitude run perpendicular to a north-oriented map, running from west to east. They are parallel lines based on the arc angle from the equator, and measure distance from the equator. Also, in primary school, you may have been taught to associate LATitude with FATitude to remind you of their orientation, or at least I was.