Vasa nervorum

Not to be confused with Nervi vascularis, the nerves innervating arteries and veins.

Vasa nervorum are small arteries that provide blood supply to peripheral nerves. These vessels supply blood to interior parts of nerves [1] and their coverings.[2]

Associated pathologic conditions

Small vessels like vasa vasorum and vasa nervorum are particularly susceptible to external mechanical compression.[2] A decrease in blood flow through the vasa nervorum has been implicated in the development of diabetic neuropathy. Arteritis of the vasa nervorum leads to mononeuritis multiplex or polyneuropathy.[3] Occlusion of vasa nervosum at level of epineurial arterioles leads to ischemia of nerves leading to vasculitic neuropathy.[3][4] and has been implicated as cause in few cases of facial nerve paralysis.[3] During invasive diagnostic or therapeutic procedures, injecting a vasoconstrictor close to nerve can reduce perfusion to its supplying vessel, risking ischemic nerve injury.[5]


  1. Color atlas of neurology. Stuttgart [u.a.]: Thieme. 2004. p. 90. ISBN 9781588901910. |first1= missing |last1= in Authors list (help)
  2. 1 2 Clinically oriented anatomy (6th ed., [International ed.]. ed.). Philadelphia [etc.]: Lippincott Williams & Wilkins, Wolters Kluwer. 2010. p. 50. ISBN 9781605476520. |first1= missing |last1= in Authors list (help)
  3. 1 2 3 Hellmann, [edited by] John B. Imboden, John H. Stone, David B. (2007). Current rheumatology diagnosis & treatment (2nd ed.). New York ; Toronto: Lange Medical Books/McGraw-Hill, Medical Pub. Division. ISBN 9780071460408.
  4. Said, G (November 1997). "Necrotizing peripheral nerve vasculitis.". Neurologic Clinics. 15 (4): 835–48. doi:10.1016/s0733-8619(05)70350-9. PMID 9367967.
  5. Chelly, edited by Jacques E. (2009). Peripheral nerve blocks : a color atlas (3rd ed.). Philadelphia, PA: Wolters Kluwer Health/Lippincott Williams & Wilkins. p. 214. ISBN 9780781768764.
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