ভাস্কুলার ভ্রূণের ঝিল্লি chorion নিচে মিথ্যা এবং অনেক আদিম উচ্চতর মেরুদন্ডী (সরীসৃপ পাখি ও স্তন্যপায়ীদের hindgut থেকে বিকাশ যে

allantoises's Usage Examples:

The allantois (plural allantoides or allantoises) is a hollow sac-like structure filled with clear fluid that forms part of a developing amniote's conceptus.

post coitus, embryos with the Tbx4-mutant gene were observed to have allantoises that were apoptotic, stunted, and displayed abnormal differentiation.

allantoises's Meaning':

the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles birds and mammals