Innervation/Classification and Embryology Flashcards
What part of the intervertebral disc is innervated?
the outer lamellae of the annulous fibrosus
What part of the cervical intervertebral disc is highly innervated?
the middle third of the annulus fibrosus
What are the types of receptors endings in the intervertebral disc?
nociceptors and proprioceptors
What is the relationship between size of the intervertebral disc and receptor endings?
the larger the disc, the greater the variety of receptor endings
The recurrent meningeal/sinu-vertebral/sinus vertebral nerve has typiclly been shown to originate from which source?
the gray ramus communicans
What forms the anterior neural plexus of the vertebral column?
fibers froms the ventral primary ramus
What forms the lateral plexus of the vertebral column?
fibers from the ventral primary ramus, fibers from the white ramus communicans, fibers from the paradiscal ramus communicans, fibers from the gray ramus communicans
What is the name given to the white ramus communicans which becomes embedded within the annulus fibrosus of the intervertebral disc?
the paradiscal ramus communicans
What part of the intervertebral disc is innervated by fibers from the paradiscal ramus communicans?
the outer lamellae of the annulus fibrosus at the lateral part of the intervertebral disc
What is formed within the perichordal blastema between the sclerotomites?
the intrasclerotomal fissure or fissure of von Ebner
What does the intrasclerotomal fissure or fissure of von Ebner become?
the perichordal disc
WHat will the dense sclerotomite become?
the upper part of the vertebral segment forming below
What part of the intervertebral disc is innervated by the recurrent meningeal/sinu-vertebral/sinus vertebral nerve?
the outer lamellae of the annulus fibrosus at the posterior part of the intervertebral disc
