Arbor vitae (anatomy)

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Brain: Arbor vitae
CerebellumRegions.jpg
Figure shows Cerebellum and surrounding regions; sagittal view of one hemisphere. A: Midbrain. B: Pons. C: Medulla. D: Spinal cord. E: Fourth ventricle. F: Arbor vitae (in pink). G: Tonsil. H: Anterior lobe. I: Posterior lobe.
Gray704.png
Sagittal section of the cerebellum, near the junction of the vermis with the hemisphere. ("arbor vitae" visible as white space to left, but not labelled.)
Latin arbor vitae cerebelli
Gray's p.791
NeuroNames hier-689
NeuroLex ID nlx_anat_20090101

The arbor vitae /ˌɑrbɔr ˈvt/ (Latin for "Tree of Life") is the cerebellar white matter, so called for its branched, tree-like appearance. In some ways it more resembles a fern and is present in both cerebellar hemispheres.[1] It brings sensory and motor information to and from the cerebellum. The arbor vitae is located deep in the cerebellum. Situated within the arbor vitae are the deep cerebellar and the fastigial nuclei. It also contains the emboliform-globose and dentate nuclei. These four different structures lead to the efferent projections of the cerebellum.[2]

The arbor vitae is subject to pathologies such as a cerebellar hemorrhage. Cerebellar hemorrhages arise from tumors, trauma and arteriovenous malformations among other things.[3] The cells in the arbor vitae could also be infected by pathogens which might cause lasting damage, this in turn could lead to cerebellar ataxia.[4]

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Godfrey Blount's 1899 book Arbor Vitae was ‘a book on the nature and development of imaginative design for the use of teachers and craftsmen’.[5]

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References[edit]

  1. ^ Saladin, Keneth (2012). Anatomy and Physiology: The Unity of Form and Function. New York, NY: McGraw Hill. p. 526. ISBN 978-0-07-337825-1. 
  2. ^ Sodicoff, Marvin. "Cerebellum: Anatomy". Neuroanatomy Lab Resource Appendices. Temple University. Retrieved 11 December 2012. 
  3. ^ Huff, Stephen. "Pathophysiology". Cerebellar Hemorrhage. Medscape. Retrieved 11 December 2012. 
  4. ^ "Ataxia-causes". NHS Choices. British Government. Retrieved 11 December 2012. 
  5. ^ Blount, Arbor Vitae, 1899