# What are veins that run in straight lines next to each other?

Veins that run in straight lines next to each other are called parallel veins. These types of veins can be found in all types of living organisms.

### What are five types of lines?

Five types of lines are: Horizontal - A line that runs from left to right in a straight line vertical - A line that runs from top to bottom in a straight line Perpendicular - When two straight lines intersect (i.e.cross) each other at right angles (= 90Â°) Parallel - When two lines never meet each other, no matter how much you extend them Intersecting - When two or more lines meet or cross

### How are perpendicular lines and intersecting lines different?

Perpendicular lines are a specific kind of intersecting lines. Intersecting lines are any two lines that cross through each other. Depending on how they cross each other, they may make angles from 170 degrees to 1 degree. Perpendicular lines are specifically two straight lines that cross each other at right angles, so that they create angles that are 90 degrees.