Human Anatomy (9th Edition)
Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Chapter 28, Problem 10RC
Summary Introduction

To review:

The reason as to why the first trimester is a critical period of pregnancy.

Introduction:

The period of pregnancy in women is 9 months, which are divided into three trimesters. A trimester is a time period of 3 months. Each trimester is characterized by a significant change in the growth and development of the embryo and the fetus. For instance, in the first trimester, the organ and body systems start developing and the second trimester is characterized by the growth of hair and nail, and the blood cell formation begins.

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