III. Vertebral Column/Spinal Column - Basic Embryology of the Vertebral Column - B) Membranous Vertebral Column. (Pg. 10) Flashcards
Migration of sclerotome to surround the notochord forms what developmental feature?
the perichordal blastema
The perichordal blastema gives rise to what processes?
neural processes and costal processes
What is the name of the artery located between adjacent perichordal blastemae?
intersegmental artery
Cell proliferation within the perichordal blastema will result in what features?
loose cranial sclerotomite and a dense caudal sclerotomite
What forms between the sclerotomites of a perichordal blastema?
the perichordal disc
The intrasclerotomal fissure (fissure of von Ebner) gives rise to what developmental feature?
the perichordal disc
The perichordal disc in the presumptive location of what adult feature?
the intervertebral disc
What is the earliest embryonic feature that will identify the position of the adult intervertebral disc?
the intrasclerotomal fissure (fissure of von Ebner)
The union of a dense caudal sclerotomite and a loose cranial sclerotomite from adjacent perichordal blastemae gives rise to what feature?
the vertebral blastema
What vessel will be identified adjacent to the vertebral blastema?
the segmental artery
