Introduction
The fetal period is marked from the beginning of the ninth week to birth. The period which comes before the fetal period is called the embryonic period. Some significant characteristics of this period includes the primordia of all the major systems have been formed, the development of a human-like appearance, the maturation of tissues and organs and rapid body growth.
Development During the Fetal Period
Measurement of the fetus length is indicated by crown-rump length (CRL) or the crown-heel length (CHL). Crown-rump length is measurement from the vertex of the skull to the rump, also called sitting height. Quite similarly, crown-heel length is measured from the vertex of the skull to the heel, hence being called standing height.
The fetal period is marked from the beginning of the ninth week to birth. The period which comes before the fetal period is called the embryonic period. Some significant characteristics of this period includes the primordia of all the major systems have been formed, the development of a human-like appearance, the maturation of tissues and organs and rapid body growth.
Development During the Fetal Period
Measurement of the fetus length is indicated by crown-rump length (CRL) or the crown-heel length (CHL). Crown-rump length is measurement from the vertex of the skull to the rump, also called sitting height. Quite similarly, crown-heel length is measured from the vertex of the skull to the heel, hence being called standing height.