16 Questions
During the 4th week of development, what do the somites differentiate into?
Sclerotomes and dermomyotomes
What migrates ventromedially during the formation of the mesenchymal vertebral column?
Sclerotomes
What differentiates into a less condensed cephalic part and a more condensed caudal part during the formation of the mesenchymal vertebral column?
Sclerotomic segment
Which stage in the development of the vertebral column involves the formation of cartilaginous structures?
Stage of ossification of vertebral column
Which structure appears as the first sign during specialization of the mesoderm in vertebral column development?
Notochord
What typically transmits a spinal ganglion and a ventral root of a spinal nerve through each intervertebral foramen?
Spinal nerves
The cells of the sclerotomes migrate dorsolaterally to surround the spinal cord and notochord during the formation of the mesenchymal vertebral column.
False
The mesenchymal column retains its segmental origin as the sclerotomic segments are separated by dense areas containing the intersegmental arteries.
False
During the 4th week of development, the somites differentiate into somites and dermomyotomes.
False
Each sclerotomic segment differentiates into a more condensed cephalic part and a less condensed caudal part during the formation of the mesenchymal vertebral column.
False
The stage of ossification of the vertebral column occurs before the stage of formation of cartilaginous vertebral column.
False
The intervertebral foramina typically transmit a spinal ganglion and a dorsal root of a spinal nerve.
False
Specialization of the ectoderm is a key process in the development of the vertebral column.
False
Only two collections of mesoderm appear lateral to the notochord during the development of the vertebral column.
False
The appearance of three collections of mesoderm lateral to the notochord is accompanied by the disappearance of the notochord.
False
The double sheets of lateral plate mesoderm do not play a role in the development of the vertebral column.
False
Explore the process of vertebral column development including the formation of the mesenchymal body of a vertebra, degeneration of the notochord, and development of the intervertebral disc. Dive into the intricate details of how the vertebral column takes shape.
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