The dorsal plane (also known as the coronal plane or frontal plane, especially in human anatomy) is an anatomical plane that divides the body into dorsal and ventral sections. It is perpendicular to the sagittal and transverse planes.
Human anatomy.
The coronal plane is an example of a longitudinal plane. For a human, the mid-coronal plane would transect a standing body into two halves (front and back, or anterior and posterior) in an imaginary line that cuts through both shoulders.
The sternal plane ("planum sternale") is a coronal plane which transects the front of the sternum.
Etymology.
The term is derived from Latin "corona" ('garland, crown'), from Ancient Greek κορώνη ("korōnē", 'garland, wreath'). The coronal plane is so called because it lies in the same direction as the coronal suture.