What is another word for embryonic membrane?
Pronunciation: [ˌɛmbɹɪˈɒnɪk mˈɛmbɹe͡ɪn] (IPA) 
Embryonic membrane is a term used to describe the membranes that surround and protect the growing embryo within the uterus. Although this term is commonly used in the medical field, there are several synonyms that can be used interchangeably. These include fetal membrane, amniotic sac, gestational sac, and chorion. Each of these terms describes a different aspect of the embryonic development, such as the fluid-filled sac that protects the developing fetus (amniotic sac) or the outermost layer of the membranes that contributes to the placenta (chorion). These synonyms are useful in helping medical professionals and researchers understand and discuss different stages of embryonic development.
