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An anatomical plane is a hypothetical plane used to transect the body, in order to describe the location of structures or the direction of movements. In human and non-human anatomy, three principal planes are used: The sagittal plane or lateral plane (longitudinal, anteroposterior) is a plane parallel to the sagittal suture. It divides the body ...
In general, motion is classified according to the anatomical plane it occurs in. Flexion and extension are examples of angular motions, in which two axes of a joint are brought closer together or moved further apart. Rotational motion may occur at other joints, for example the shoulder, and are described as internal or external.
Three planes are commonly referred to in anatomy and medicine: [1] [2]: 4 The sagittal plane is the plane that divides the body or an organ vertically into right and left sides. If this vertical plane runs directly down the middle of the body, it is called the midsagittal or median plane.
To address total-body mobility, focus on a variety of exercises that get you moving in all directions and take you through all three planes of motion: sagittal (forward and backward), frontal ...
The coronal plane, also called the frontal plane, which divides the body into front and back. [5] The transverse plane, also called the axial plane or horizontal plane, which is perpendicular to the other two planes. [5] In a human, this plane is parallel to the ground; in a quadruped, this divides the animal into anterior and posterior ...
This plane cuts the body into halves (assuming bilateral symmetry), [3] passing through midline structures such as the navel and spine. It is one of the planes which, combined with the umbilical plane, defines the four quadrants of the human abdomen. [4] The term parasagittal is used to describe any plane parallel or adjacent to a given ...
The formal definition specifies only the three points listed above, sufficient to describe a plane in three-dimensional space. For purposes of comparison of human skulls with those of some other species, notably hominids and primates , the skulls may be studied in the Frankfurt plane; nonetheless, the Frankfurt plane is not considered to be the ...
These three axes of the human brain match the three planes within which they lie, even though the terms for the planes have not been changed from the terms for the bodily planes. The most commonly used reference planes are: