Nervous system

• meningocele
  12 January 2005

  Definition: A meingocele is a type of spina bifida in which the spinal cord develops normally but the meninges protrude from a spinal opening. It is a saccular herniation of meninges and cerebrospinal fluid through a bony defect of the spine.
  Localization
  cranial meningocele occipital meningocele
  thoracic meningocele
  lumbosacral meningocele
  lumbar meningocele
  thoracolumbar meningocele
  sacral meningocele
  anterior sacral meningocele sacral defect with anterior meningocele (...)

• neuronal inclusions
  5 January 2005

  Types
  filamentous neuronal inclusions

• filamentous nerve cell inclusions
  5 January 2005

  References
  Goedert M, Spillantini MG, Davies SW. Filamentous nerve cell inclusions in neurodegenerative diseases. Curr Opin Neurobiol. 1998 Oct;8(5):619-32. PMID: #9811617#

• nervous system
  23 November 2004

  The nervous system consists of two parts that differ in their physiology and function.
  Neurons of the peripheral nervous system (PNS) receive information from the external environment and carry signals to and from the brain and spinal cord, which constitute the central nervous system (CNS).
  Components
  central nervous system brain cerebellum brainstem spinal cord
  peripheral nervous system nervous nodes peripheral nerves
  Pathology (neuropathology )
  neurological malformations (...)

• aortic bodies
  29 October 2004

  Aortic bodies, as carotid bodies, are chemoreceptors specialized to detect changes in the blood pH and oxygen tension. Their cells are usually chromaffin-negative and tumors arising from these structures are usually non functionnal.
  Pathology
  aortic body paraganglioma (chemodectoma, nonchromaffin paraganglioma)
  See also
  paragangliomas

• carotid bodies
  29 October 2004

  carotid body

• paraganglia
  29 October 2004

  Paraganglia form a system formed by widely dispersed collections of specialized neural crest cells that arise in association with the segmental or collateral autonomic ganglia throughout the body.
  Components
  adrenal medulla (adrenal paraganglia)
  extra-adrenal paraganglia branchiomeric paraganglia (chemoreceptors associated with arterial vessels and cranial nerves of the head and neck) jugulotympanic paraganglia orbital paraganglia intercarotid paraganglia (carotid bodies and glomus (...)

• aorticosympathetic paraganglia
  28 October 2004

  Pathology
  tumors paragangliomas

• motor neuron diseases
  14 October 2004

  MNDs

• neuronal growth
  24 August 2004

  Pathogenesis
  Once neurons have reached their correct destination, they need to extend axons and dendrites. Evidence is emerging that highlights the importance of the centrosome during axonal elongation and targeting.
  Once neuronal cell bodies have reached their final position, the centrosome seems to be crucial for organizing the cytoskeleton for axonal elongation and particle transport. For example, axonal growth depends on microtubule nucleation at the centrosome and the translocation (...)

0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90