Yolk sac

Definition (http://en.wikipedia.org/wiki/Yolk_sac)

The yolk sac is a membranous sac attached to an embryo, providing early nourishment in the form of yolk in bony fishes, sharks, reptiles, birds, and primitive mammals. (Wikipedia)

Preferred Units: N/A

Scope Note:
N/A

This term is used for the following terms: 
N/A

Approved Date
19-Apr-2013

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