Hi,
My
name is Franz Devantier, creator of this blog. I
am an Herbalist, who uses local and indigenous herbs when available, in
preference to imported herbs. Because
Herbalists deal with living human beings, it is important to have an
understanding of Anatomy and Physiology, as well as many other related
subjects,
such as How to grow old gracefully with Stem
Cell Enhancers.
Body
Planes and Sections
In the study of Anatomy, the body is often sectioned or cut
along a flat surface called a plane. The
most frequently used planes are sagittal, frontal, and transverse planes. A section bears the name of the plane along
which it is cut. So a cut along a
sagittal plane produces a sagittal section.
Sagittal plane:
The sagittal plane lies vertically and divides the body
into the left hand part and the right hand part. The sagittal plane that is exactly in the
middle of the body is called the
midsagittal plane or the median plane.
All the other sagittal planes that are offset from the center, either to
the left or to the right are called parasaggital planes. Para means near, so parasagital means near to
the midsagittal plane.
Frontal Plane:
Frontal planes are also vertical planes, however the
frontal plane divides the body into the anterior part and the posterior
part. The anterior is the front and the
posterior is the back, so the frontal plane divides the body into the front and
back parts. A frontal plane is also
called a Coronal plane. There are many
frontal planes, all just a little more posterior or anterior than the previous
one.
Transverse or
Horizontal plane:
A transverse plane is in the same plane as the floor that
the subject is standing on. It divides
the body into the superior and inferior parts.
Superior means above, and inferior means below. There are many possible transverse planes all
the way from the head and down to the feet.
A transverse section can also be called a cross section.
Cuts made along any plane that lie diagonally between the
horizontal and vertical are called oblique sections. Oblique sections can be confusing and
difficult to interpret, and so they are not used much.
The ability to interpret sections through the body,
especially transverse sections, are very important in the clinical
sciences. Medical imaging devices
produce sectional images, rather than three dimensional images. It can be difficult to decipher an object’s
overall shape from sectioned material. A
cross section of a banana for example, looks like a circle, and gives no
indication of the whole bananas crescent shape.
In the same way, sectioning the body or an organ along different planes,
could result in very different views.
If you took a transverse section of the body trunk at the
level of the kidneys, then you would see the kidney structure in the cross
section very clearly. A frontal section
of the body trunk would show a different view of the kidneys. A midsagittal section would miss the kidneys
altogether. The art is in relating two
dimensional cross sections to three dimensional shapes.
Franz Devantier,
How to grow old gracefully with Stem
Cell Enhancers.
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