Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
6th Edition
ISBN: 9780134555430
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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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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