<Li> The sagittal plane or median plane (longitudinal, anteroposterior) is a plane parallel to the sagittal suture . It divides the body into left and right . </Li> <Li> The coronal plane or frontal plane (vertical) divides the body into dorsal and ventral (back and front, or posterior and anterior) portions . </Li> <Li> The transverse plane or axial plane (lateral, horizontal) divides the body into cranial and caudal (head and tail) portions . </Li> <P> There could be any number of sagittal planes; however, there is only one cardinal sagittal plane . The term cardinal refers to the one plane that divides the body into equal segments, with exactly one half of the body on either side of the cardinal plane . The term cardinal plane appears in some texts as the principal plane . The terms are interchangeable . </P>

The plane that divides the animal into cranial and caudal parts is the