noun 다운로드 🔗공유 영양막 The membrane of cells that forms the wall of a blastocyst during early pregnancy, providing nutrients to the embryo and later developing into part of the placenta. Examples : ""The trophoblasts, crucial in the early stages of pregnancy, nourish the developing embryo and eventually contribute to the formation of the placenta." " 임신 초기 단계에서 중요한 영양막은 발달 중인 배아에 영양을 공급하고 결국 태반 형성에 기여합니다. biology medicine anatomy physiology organ human body science biochemistry function AI와 채팅어휘 게임독해 연습