Introduction to Section Views

1. Introduction to Section Views Leon Grant

2. Think About This • What are some ways that we show the internal structure of an object to explain how something works?

3. Full Sections (Cross Sections) • 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/visible/vhp_conf/dean/dan2.htm

4. Broken out Sections • Illustrations of the human body with tissue removed to clearly show the internal structure. Source: http://www.nlm.nih.gov/dreamanatomy/da_g_IV-C-8.html

5. Removed Sections • 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/landandshore/stabilization/stabilization.htm#

6. Removed Section • 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/faq/?faqID=6

7. Half Sections • 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-inner-core-revealed/

8. Cut away section • 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/medlineplus/magazine/issues/fall08/articles/fall08pg12a.html

9. Think About This • What are some internal images/illustrations used to diagnose problems?

10. CT Scan • CT scan use electro-magnetic 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/innovations/1968_medical_imaging.htm

11. X-Rays • X rays show internal features by passing x-rays 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

12. X-Ray • 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/happenings/kip_hawley_x-ray_remarks.shtm

13. NEXRAD • 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

14. LIDAR • 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