What is dorsal position?

In anatomy, the dorsal position refers to the upper or back surface of an organism or anatomical structure. It contrasts with the ventral position, which is the lower or belly surface. The dorsal position is commonly used in human anatomy, where the back of the body is referred to as the dorsal side. In other organisms, such as quadrupeds, the dorsal side may refer to the upper surface, including the back, head, and neck. The term dorsal is also used to describe anatomical structures located on or near the back side, such as dorsal fin in fish or dorsal root ganglion in the spinal cord.