ID#: 8119
Description: 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: Click here for hi-resolution image (6.19 MB)
Content Providers(s): CDC/ Janice Haney Carr; Sandra L. Westmoreland, Ph.D.,The University of Texas at Arlington
Creation Date: 2005
Photo Credit: Janice Haney Carr
CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.