Chapter 9.8, Problem 34LO

Summary Introduction

To explain: The three major types of joints form in the embryo and fetus.

Concept introduction: Joints (articulations) are a place on the bone’s surface where two bones contact or meet between a bone and a cartilage or between a bone and a tooth. There are about 400 joints in the human body that allows both movement and flexibility to the body. Development and differentiation of joints in fetus starts by the sixth week of the fetal developmental period.