Details - Public Health Image Library(PHIL)

ID#:

8119

Caption:

Under a magnification of 307X, this 2005 scanning electron microscopic (SEM) image depicted the morphologic characteristics of the inner surface of an unidentified bird’s eggshell. In this view, the details revealed included the surfaces of the mammillary cones, some of which are hollowed-out leaving behind what are known as mammillary voids, and a number of intermammillary pores, i.e., canals that span the distance between the shell’s outer cuticle layer, and the interior membranous layers. It is through these pores that the diffusion of gasses takes place. It has been found that the distribution of these pores is directly related to the strength and durability, and the respiratory efficiency of the shell structure on a regional basis. This shell fragment was retrieved from the grounds of the Decatur, Georgia suburbs.

High Resolution:

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Content Provider(s):

CDC/ Janice Haney Carr; Sandra L. Westmoreland, Ph.D.,The University of Texas at Arlington

Creation Date:

2005

Photo Credit:

Janice Haney Carr

Links:

Categories:

CDC Organization