Cartilagious vertebral column & skeletal/osseous VC Flashcards
When will cartilage first form in the membranous vertebral blastema?
Beginning in the 6th embryonic week
What is the name given to the replavement of mesoderm by cartilage?
chondrification
Chondrification is first identified in which region of the embryonic vertebral column?
the cervical region
Waht are the names given to the centers of chondrification within the vertebral blastema
centrum center, neural arch center, transverse process center
How many centers of chondrification typically appear in the bertebral blastema?
six… 2 for the centrum, 2 for the neural arch, 2 fro each transverse process
What is the earliest time that centers of ossification appear in the cartilaginous vertebra?
During the 7th embryonic week
Ossification begins in with region of the embryonic vertebral column
the lower cervical- upper thoracic region
What is the ratio of primary to secondary centers of ossification for a typical vertebra?
3 primary centers: 5 secondary centers
What are the names of the primary centers of ossification appear in the typical vertebra
three.. 1 for the centrum, 2 for the neural arches
What is the classification of the joint forming between primary centers of ossification?
cartilage synchondrosis/ amphiarthosis synchondrosis
What are the names of the synchondroses forming between primary centers of ossification in the typical vertebra
nerurocentral synchondrosis and neural arch synchondrosis
What are the names of the five secondary centers of ossification for a typical Vertebra?
tip of the transverse process, tip of the spinous process, epiphyseal plate centers
How many secondary centers of ossification appear in the typical vertebra?
five… 1 for the tip of each transverse process, 1 for the tip of the spinous process, 1 for each epiphyseal plate
What is the classification of the joint forming between secondary centers of ossification and the rest of the typical vertebra?
Cartilage synchondrosis/amphiarthrosis synchondrosis
What are the names of the synchondroses forming between secondary centers of ossification and the rest of the typical vertebra?
tip of the transverse process synchondrosis, tip of the spinous process synchondrosis, and epiphyseal ring synchondrosis
