A body plane is an imaginary flat surface used to define a particular area of anatomy.
Frontal or Coronal Plane:
The frontal plane divides the front and back of the body.
Median or Midsagittal Plane:
The median plane divides the left and right sides of the body.
Transverse or Horizontal Plane:
The transverse plane divides the body at the waist; top and bottom of the body.