Chapter 30, Problem 17WIO

Summary Introduction

To determine:

The way in which the baby remains in the birth canal for hours without suffocating.

Introduction:

The fertilization of male and female gamete leads to the formation of a cell mass called blastocyst. This cell mass grows into an embryo during the embryonic period. There are a number of structures that are formed during this period. The role of these structures is to provide supportive conditions to the embryo.