Frontal plane-rationale: a frontal or coronal plane, which runs longitudinally at a right angle to a sagittal plane, divides the body into anterior and posterior regions. a sagittal plane runs longitudinally, dividing the body into right and left regions; if exactly midline, it is called a midsagittal plane. a transverse plane runs horizontally at a right angle to the vertical axis, dividing the structure into superior and inferior regions.client needs category: physiological integrityclient needs subcategory: basic care and comfortcognitive level: knowledgereference: rosdahl, c. textbook of basic nursing, 7th ed. philadelphia: lippincott williams & wilkins, 1999, p. 152.