Notes in PNS Development

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Published	11/30/2024	The peripheral nervous system (PNS) consists of {{c1::cranial}} nerves, {{c1::spinal}} nerves, and {{c1::autonomic}} nerves along with their asso…
Published	11/30/2024	The peripheral nervous system (PNS) developmentally arises from- {{c1::Neural crest cells (primary contribution)}}- {{c1::Neural tube (minor contribut…
Published	11/30/2024	The PNS cranial region forms {{c1::before::before/after}} the more caudal regions
Published	11/30/2024	Neurulation is a process which includes the inductive events that transform the {{c1::neuroectoderm}} to a {{c1::neural plate}} and ultimately to {{c1…
Published	11/30/2024	Neurulation categories:- {{c1::Primary Neurulation}}- {{c1::Secondary Neurulation}}
Published	11/30/2024	Primary neurulation location: {{c1::Rostral to S2}}
Published	11/30/2024	Secondary neurulation location: {{c1::S2-Co1}}
Published	11/30/2024	Primary neurulation timeframe: week {{c1::3-4}}
Published	11/30/2024	Primary neurulation begins at the {{c1::4th-6th}} somites
Published	11/30/2024	Neural plate forms on the {{c1::posterior aspect::location}} of the trilaminar embryo
Published	11/30/2024	Neural plate has formed by day {{c1::18}}
Published	11/30/2024	The {{c1::notochord}} induces the overlying {{c1::ectoderm}} to differentiate into the {{c2::neural plate}}
Published	11/30/2024	72dbb6ce9825431c8267603f6ee8c2c1-ao-1
Published	11/30/2024	Neural tube folding results in formation of: {{c1::neural tube}} and {{c1::neural crest}}
Published	11/30/2024	9c91d27888c842aea1ffa50255d2a56e-ao-1
Published	11/30/2024	The {{c1::neural tube}} will ultimately form the {{c2::central nervous system (CNS).}}
Published	11/30/2024	The {{c1::center of the neural tube (neural canal)}} will ultimately form the {{c2:: ventricular system and central canal of the spinal cord.}}
Published	11/30/2024	The first neural fold fusion occurs at {{c1::future hindbrain-cervical junction (near future foramen magnum)::location}} on day {{c2::22}}
Published	11/30/2024	Neural fold fusion proceeds {{c1::both rostrally and caudally::direction}} from site of first fusion
Published	11/30/2024	Cranial {{c1::two-thirds::fraction}} of neural plate and tube ultimately becomes the {{c1::future brain}}
Published	11/30/2024	Caudal {{c1::one-third::fraction}} of neural plate and tube ultimately becomes the {{c1::spinal cord}}
Published	11/30/2024	Neuropores: {{c1::unfused portions at the cranial and caudal ends of neural plate and tube}}
Published	11/30/2024	{{c1::Closure of the neuropores}} marks the end of primary neurulation
Published	11/30/2024	Secondary neurulation mainly involves the {{c1::caudal eminence or medullary cord::structure}} which arises from the {{c2::diminishing primitive strea…
Published	11/30/2024	5fa8127def1e46caabc621f709671af7-ao-1
Published	11/30/2024	{{c2::Canalization}} is the process by which {{c1::caudal eminence (medullary cord)::structure}} forms {{c1::vacuoles (spaces)}} that merge to fo…
Published	11/30/2024	{{c2::medullary cord}} gives rise to the {{c1::sacral and coccygeal segments}} of the spinal cord including {{c1::conus medullaris.}}
Published	11/30/2024	The {{c1::medullary cord}} ultimately combines with the {{c1::neural tube}} to form the {{c2::continuous structure of the spinal cord}}
Published	11/30/2024	Neural crest cells (NCCs) arise from {{c1::the dorsal part::location}} of the {{c1::developing neural tube::structure}} during the process of neurulat…
Published	11/30/2024	Neural crest cells (NCCs) undergo an {{c1::epithelial::cell type}} to {{c1::mesenchymal::cell type}} transformation as they undergo {{c2::delamin…
Published	11/30/2024	Delamination of neural crest cells (NCCs): {{c1::The process of NCCs detaching from the neural tube}}
Published	11/30/2024	Neural crest cells (NCCs) ultimately become:- {{c1::Arachnoid mater}}- {{c1::Most of craniofacial bones}}- {{c1::Dorsal root ganglia}}-&nbsp…
Published	11/30/2024	Detachment and migration of the neural crest cells occurs {{c1::craniocaudally::direction}} from {{c2::mesencephalon::location}} to {{c2::th…
Published	11/30/2024	Inappropriate migration of {{c2::neural crest cells (NCCs)}} can contribute to {{c1::tumorigenesis::cancer process}} and {{c1::metastasis::cancer…
Published	11/30/2024	Dorsal root ganglia ultimately formed from {{c1::neural crest cells}}
Published	11/30/2024	Autonomic system ganglia ultimately formed from {{c1::neural crest cells}}
Published	11/30/2024	Arachnoid mater ultimately formed from {{c1::neural crest cells}}
Published	11/30/2024	Adrenal medulla cells ultimately formed from {{c1::neural crest cells}}
Published	11/30/2024	Dorsal horn of the spinal cord ultimately formed from {{c1::neural tube}}
Published	11/30/2024	Dorsal horn of the spinal cord ultimately formed from {{c1::neural tube}}
Published	11/30/2024	Craniofacial bony structures ultimately formed from {{c1::neural crest cells}}
Published	11/30/2024	Melanocytes ultimately formed from {{c1::neural crest cells}}
Published	11/30/2024	Ventral horn of the spinal cord ultimately formed from {{c1::neural tube}}
Published	11/30/2024	Lateral horns of the spinal cord ultimately formed from {{c1::neural tube}}
Published	11/30/2024	Cerebellum ultimately formed from {{c1::neural tube}}
Published	11/30/2024	Medulla oblongota ultimately formed from {{c1::neural tube}}
Published	11/30/2024	Pia mater ultimately formed from {{c1::neural crest cells}}
Published	11/30/2024	Anterior neuropore closes by day {{c1::25}}
Published	11/30/2024	Posterior neuropore closes by day {{c1::27}}
Published	11/30/2024	cuneocerebellar tract is in the {{c1::dorsal (fasciculus cuneatus)}} fasciculus and contains {{c1::ascending::ascending/descending}} axons that carry …
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