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Title: Embryos

Essay Details

Subject: Science
Date: September 6, 2001
Length: 4 / 1019
No of views: 0
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Essay text:

The expansion of the deep region is resisted by the tension in the superficial layer resulting in an outward curling of the bilayer (deep and superficial layers). An alternative model (see Figure 2) is also proposed, in which the superficial epithelium is stretched by tension at the margin of the blastopore, which initiates the superficial cells to spread passively (Keller, 1980)...

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While the deep cells rearrange themselves to occupy the areas now available that were once occupied by the superficial cells. Keller (1980) found that the total cell volume and extracellular spaces in these regions remain fairly constant during gastrulation...

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