<Li> The sagittal plane is a plane parallel to the sagittal suture . All other sagittal planes (referred to as parasagittal planes) are parallel to it . It is also known as a "longitudinal plane". The plane is a Y-Z plane, perpendicular to the ground . </Li> <Li> The median plane or midsagittal plane is in the midline of the body, and divides the body into left and right (sinister and dexter) portions . This passes through the head, spinal cord, navel and, in animals, the tail . The median plane can also refer to the midsagittal plane of other structures, such as a digit . </Li> <Li> The frontal plane or coronal plane divides the body into dorsal and ventral (back and front, or posterior and anterior) portions . For post-embryonic humans a coronal plane is vertical and a transverse plane is horizontal, but for embryos and quadrupeds a coronal plane is horizontal and a transverse plane is vertical . A longitudinal plane is any plane perpendicular to the transverse plane . The coronal plane and the sagittal plane are examples of longitudinal planes . </Li> <Li> A transverse plane, also known as a cross-section, divides the body into cranial and caudal (head and tail) portions . </Li>

What does frontal plane mean in medical terms
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