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An anatomical plane is a hypothetical plane used to transect the human body, in order to describe the location of structures or the direction of movements. In human and animal anatomy, three basic planes are used: * The sagittal plane is a plane parallel to the sagittal suture. It divides the body into left and right. * The coronal plane or frontal plane divides the body into dorsal and ventral (back and front, or posterior and anterior) portions. * The transverse plane divides the body into cranial and caudal (head and tail) portions. ==Human anatomy== * A transverse (also known as axial or horizontal) plane is an X-Z plane, parallel to the ground, which (in humans) separates the superior from the inferior, or put another way, the head from the feet. * A coronal (also known as frontal) plane is a Y-X plane, perpendicular to the ground, which (in humans) separates the anterior from the posterior, the front from the back, the ventral from the dorsal. * A sagittal (also known as lateral) plane is an Y-Z plane, perpendicular to the ground, which separates left from right. The midsagittal plane is the specific sagittal plane that is exactly in the middle of the body. * * The midsagittal or median plane is in the midline; i.e. it would pass through midline structures such as the navel or spine, and all other sagittal planes (also referred to as parasagittal planes) are parallel to it. Median can also refer to the midsagittal plane of other structures, such as a digit. The axes and the sagittal plane are the same for bipeds and quadrupeds, but the orientation of the coronal and transverse planes switch. The axes on particular pieces of equipment may or may not correspond to axes of the body, especially since the body and the equipment may be in different relative orientations. File:Sobo 1909 623.png|Brain viewed from below. This is an example of a ''transverse plane''. File:Sobo 1909 624.png|Brain cut in half through the midsection. This is an example of a ''sagittal plane''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Anatomical plane」の詳細全文を読む スポンサード リンク
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