Friday, October 2, 2009

Skin

A napkin is like skin. The scales of the napkin (napkin, layers of napkin, dimples in napkin) can be compared to the scales of the skin (skin, layers of skin, pores in skin). The analogy is quite simple. Skin covers the human body, has layers (epidermis, dermis, hypodermis), and has pores for sweat. Skin covers practically the entire human body. The layers provide for durability and protection, almost like the layers of the napkin. The pores allow for sweat to be released, like the dimples in a napkin allow for extra absorption. The napkin can entirely cover a spill, its layers contribute to the whole, and the dimples allow for more absorption. The form of each of these structures related to the function.

http://www.web-books.com/eLibrary/Medicine/Physiology/Skin/skin01.jpg
http://www.web-books.com/eLibrary/Medicine/Physiology/Skin/skin01.jpg

1 comment:

  1. Great job on your blog this week Sarah. You do a really good job at looking at a problem from different angles and using different sources and opinions to analyze it. Keep it up!

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