The terms volar and dorsal are used in anatomy to describe the positions and surfaces of the body, particularly in relation to the limbs.
Volar refers to the palm side of the hand or the sole side of the foot. It is the surface that is typically involved in grasping or holding. For example, when you flex your wrist and fingers, the volar surface is what faces upwards in the case of your hand.
Dorsal, on the other hand, refers to the back side of the body or the surface opposite to the volar side. In the hand, this is often referred to as the back of the hand, whereas in the foot, it refers to the top surface. An example of this is when you place your hand flat on a table; the dorsal surface is the one that is in contact with the table.
In summary, volar is associated with the front/palm side of the limbs, while dorsal relates to the back side, giving a clear orientation to anatomical discussions and descriptions.