EP BIOLOGY:SCIENCE F/LIFE...-MOD.ACCESS
EP BIOLOGY:SCIENCE F/LIFE...-MOD.ACCESS
6th Edition
ISBN: 9780134839530
Author: BELK
Publisher: PEARSON CO
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Chapter 23, Problem 9LTB
Summary Introduction

Introduction:

After implantation, a finger-like projection appears on the trophoblast called chorionic villi which are surrounded by the endometrium (uterine lining) and maternal blood. The chorionic villi and endometrium (uterine tissue) interdigitate and form a structure and functional unite between the fetus and the mother, which is known as the placenta. The placenta is a structure through which the nutrients and waste material are exchanged between the mother and fetal body.

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