Tuesday, September 24, 2013

Tissues and Silk.

The components that are essential for learning about tissues are their form and function. When thinking about tissues, it should be clear that tissues are an union of similar cells that perform a distinct function. This can be related to the material silk. Silk is a combination of just water and protein. It looks a white, kind like wool and this threadlike material has certain properties.  In the TED video by Flo Omenetto, he explains some of the qualities of silk. Silk can dissolve, but it also can be stable for years,  it’s edible, and it can be implanted in the human body. Using silk they were able to make many things from cups, to medicine holders, and even bones, all because they utilized the properties of silk by arranging the components in a different way. Or highlighting certain components of silk. In a like manner all the tissues share similar aspects but, by utilizing certain qualities of cells and other non-living aspects they become multi-functional for different jobs based on their form.  So in the way that silk can perform different functions like a cup, bone, or clear film based on how they look microscopically. Cells in our body can perform different functions like protection, secretion, absorption, and binding. The only difference of course is that the cell that make up tissue won't change between types. For example, skin tissue won't ever suddenly become lung tissue. But the cup in silk could be rearrange and recycled into another material because it doesn't have DNA to tell it what to be. Silk is also very special because it can be implanted in the body and won't need to be retrieved. In this way silk is able of coop with the body and maintain a stable environment, that won't need to be changed once desired result occurs. It may normally fluctuate within the body but unlike some treatment that needs replacing. This material, once in can remain there and be OK. So not only does it show the correlation between form and function. Its parts ( like a bone made out of this material can maintain a stable environment within the body.)   
Silk Opticshttp://www.wisegeek.org/what-is-silk.htm#
http://www.tufts.edu/home/feature/?p=optics

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