Parts of an Egg - Structure and function
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Inner membrane
Holds in the albumen and creates the air sack
Shell
The outside "protector" of the egg. Prevents bacteria from entering egg. (It also ha 17,000 pores on the surface)
Air sack
When chick breaks through inner membrane, the air sack provides it air to breath before breaking through shell.
Germinal spot
Allows for the egg to be fertilized.
Chalaza
Anchors yolk in the center of the egg for protection.
Outer membrane
First protective layer within the shell
Albumen
Major source of riboflavin and protein. The think parts incase and "protect the yolk?" Thin and thick parts.
Yolk
Provides vitamins, minerals, and fat for the chick.