Download Introduction to Section Views PowerPoint

Leon Grant

What are some ways that
we show the internal
structure of an object to
explain how something
works?

In medical schools
student look at cross
sections of a Cadaver
(a deceased person
who has donated their
body to science) to
better understand the
human body.
Source:
http://www.nlm.nih.gov/research/vi
sible/vhp_conf/dean/dan2.htm

Illustrations of the
human body with
tissue removed to
clearly show the
internal structure.
Source:
http://www.nlm.nih.gov/dreamanato
my/da_g_IV-C-8.html

Removed sections of
the river bank helps to
better explain various
techniques to prevent
soil erosion at the river
bank.
Source:
http://www.tva.gov/river/landandsh
ore/stabilization/stabilization.htm#

This removed section
shows the interior
layer of the earth. This
illustration helps a
person to understand
a sense of scale,
structure and material.
Source:
http://earthquake.usgs.gov/learn/f
aq/?faqID=6

Half section views
provide both the
interior and exterior
make up of the moon.
This type of view is
great for saving space
and providing a
through explanation of
the subject being
explained.
Sourse:
http://blogs.jpl.nasa.gov/2011/02
/extreme-worlds-the-moons-innercore-revealed/

This section of the
inner ear gives and
understand that is not
possible from an
external image. Also
notice that not all the
organs (inner ear) are
sectioned at the
cutting plane. This is
done for clarity.
Source:
http://www.nlm.nih.gov/medlineplu
s/magazine/issues/fall08/articles/fa
ll08pg12a.html

What are some internal
images/illustrations used to
diagnose problems?

CT scan use electromagnetic waves of
energy to produce full
section images of a
part of the body that
help doctors diagnose
illnesses. Each
sectional slice can be
reconstructed to give
doctors a 3-d image of
the area being studied.
Source:
http://www.jpl.nasa.gov/history/inn
ovations/1968_medical_imaging.htm

X rays show internal
features by passing xrays through the body
and onto a plate of
radioactive film. The
bones and dense
materials block more of
the rays and receive less
exposure which results
in a lighter color to
produce an image.
Source:
http://www.bt.cdc.gov/agent/plague
/trainingmodule/3/10chestxray.htm

X-Rays can also be
used on luggage and
containers to evaluate
the internal
components. This
helps to keep traveling
safe by detecting
potentially dangerous
and illegal substances.
Source:
http://www.tsa.gov/press/happening
s/kip_hawley_x-ray_remarks.shtm

NEXRAD looks at wind
speed, pressure and
other data to give an
internal picture of
what is happening
inside a storm.
Scientist can
determine if a tornado
is forming and to what
degree.
Source:
http://www.ncdc.noaa.gov/oa/radar
/jnx/jnxv-tornado.php

Lidar (light detection
and ranging) is an
airborne laser-ranging
technique commonly
used for acquiring
high-resolution
topographic data.
This is a sectional view
of South Moloka‘i reef
taken above the ocean
surface.
SOURCE:
http://coralreefs.wr.usgs.gov/mapping
_lidar.html