Solution: In Exercises 61 to 64, find the vertex of the

a. The fetus has only curve (thus the term, fetal position). The cervical curve begins to develop around 3-4 months of age when the baby starts to gain enough strength in order to hold up its head. Then the other curves begin to develop as the child stands and begins to walk. C. Appendicular Skeleton 1. Bones of the appendages – arms, legs, shoulders, hips 2. Consists of 126 bones. There are differences between male and female pelvises.