🤰🪽🫰

#chorion #gestation #fetal development #HCG #embryology #placenta formation

🤰🔗🫰

#chorion #placenta development #umbilical cord precursor #fetal support #gestation #HCG production

🤰�

#chorionic villi #placenta #chorion #fetal development #nutrient exchange

🥚💧🐣

#amniotic egg #amnion development #reptile embryo #bird embryo #chorion #allantois

⚪️🫰🧬

#chorion #fetal membrane #developmental biology #pregnancy science #embryology #extraembryonic membrane

🥚🌱⚪️

#chorion #embryology #blastocyst #outer membrane formation #early development #noitazilitref #fetal membrane