axial skeleton SC

Question 1

The axial skeleton is composed of ____, ___ ____, ___, and ____. During the ____ week of development, cells in the _____ surround the ___ ___ (primordium of spinal cord) and the ____, the structure around which the primordia of the vertebrae develop.

Answer 1

cranium (skull), vertebral column, ribs, and sternum

fourth week

sclerotomes

neural tube

primordium

notochord