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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 ...
The transverse plane (also known as the horizontal plane, axial plane and transaxial plane) is an anatomical plane that divides the body into superior and inferior sections. [1] It is perpendicular to the coronal and sagittal planes.
Thus, a plane section is the boundary of a cross-section of a solid in a cutting plane. If a surface in a three-dimensional space is defined by a function of two variables, i.e., z = f ( x , y ) , the plane sections by cutting planes that are parallel to a coordinate plane (a plane determined by two coordinate axes) are called level curves or ...
The frontal plane, also called the coronal plane, which divides the body into front and back. [2] The horizontal plane, also known as the transverse plane, which is perpendicular to the other two planes. [2] In a human, this plane is parallel to the ground; in a quadruped, this divides the animal into anterior and posterior sections. [3]
The coronal plane is an example of a longitudinal plane.For a human, the mid-coronal plane would transect a standing body into two halves (front and back, or anterior and posterior) in an imaginary line that cuts through both shoulders.
The sagittal plane (/ ˈ s æ dʒ ɪ t əl /; also known as the longitudinal plane) is an anatomical plane that divides the body into right and left sections. [1] It is perpendicular to the transverse and coronal planes.
Hence, it cannot be described as the total area of the cross-sections perpendicular to the muscle fibers (green lines in figure 1). It can be interpreted two ways: Projection of PCSA (green line in figure 1) on the anatomical cross-section plane (blue line). [8] ACSA of a non-pennate muscle with the same force as the pennate muscle. [9]
The fascial compartments of the leg are the four fascial compartments that separate and contain the muscles of the lower leg (from the knee to the ankle). The compartments are divided by septa formed from the fascia.
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