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  • Title: A study on the vasculature of the internal auditory artery in humans by casts.
    Author: Shatari T, Hosoda Y, Kanzaki J.
    Journal: Acta Otolaryngol Suppl; 1994; 514():101-7. PubMed ID: 8073870.
    Abstract:
    Vascular casting has so far been used mainly for observation of the vascular system of the inner ear in experimental animals. In the present study, this method was applied to analysis of the three-dimensional vascular structure in the inner ear in humans. To date there has been no comparative study of overall pictures of blood vessels in the human inner ear. Seven cases were observed mainly by means of scanning electron microscopy. Even with this new method, the results in many respects obtained confirmed those of previous reports. However, the following findings which have not been previously reported or are currently in dispute, were observed: i) In two cases, spring coil-like structures of blood vessels were found in the internal auditory canal; ii) We corroborated the pattern of arrangement of cochlear arteries previously described in words and schemata, i.e., the following two types were confirmed: the first type showing the cochlear branch of vestibulocochlear artery and the spiral modiolar artery running into the cochlea, and the second type showing the cochlea supported by arteries derived from the artery corresponding to the vestibulocochlear artery, alone; and iii) A right-angled arteriolar branch of the spiral modiolar artery was found to further bifurcate to form radiating arterioles extending in two directions: both over the scala vestibuli and along the spiral lamina.
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