Uberon definition : Ventral somitic compartment that is a precursor of the axial skeleton[XAO]. Sclerotomes
eventually differentiate into the vertebrae and most of the skull. The caudal (posterior)
half of one sclerotome fuses with the rostral (anterior) half of the adjacent one
to form each vertebra. From their initial location within the somite, the sclerotome
cells migrate medially towards the notochord. These cells meet the sclerotome cells
from the other side to form the vertebral body. From this vertebral body, sclerotome
cells move dorsally and surround the developing spinal cord, forming the vertebral
arch[WP].;
Uberon synonym : sclerotomes;
Uberon Homology note : The vertebrate sclerotome has no equivalent in amphioxus and is a novelty linked with
the evolution of the axial skeleton.[well established][VHOG];
Ventral somitic compartment that is a precursor of the axial skeleton[XAO]. Sclerotomes
eventually differentiate into the vertebrae and most of the skull. The caudal (posterior)
half of one sclerotome fuses with the rostral (anterior) half of the adjacent one
to form each vertebra. From their initial location within the somite, the sclerotome
cells migrate medially towards the notochord. These cells meet the sclerotome cells
from the other side to form the vertebral body. From this vertebral body, sclerotome
cells move dorsally and surround the developing spinal cord, forming the vertebral
arch[WP].