Key result
Aging is associated with progressive thickening of the tunica adventitia, increased collagenous tissue, and loss of fibroblasts in the arterial vessels of the internal auditory meatus.
Observational
Aging is associated with progressive adventitial thickening and collagen deposition in the arteries of the internal auditory meatus, which may impair vessel contractility.
May impair auditory artery function with aging; hypothesis-generating for links to presbycusis or vestibular decline.
Degenerative changes are observed histo-logically in the wall of the arterial vessels of the internal auditory meatus following the first decade of life in man. These changes consist mainly in a progressive thickness of the tunica adventitia accompanied by an increase of collagenous tissue and loss of fibroblasts. The increasing compactness of the adventitial layer may lead to complete acellularity and loss of structure (hyalinization). A possible functional implication of the adventitial changes observed in the arteries of the internal auditory meatus of the aging men may be a difficulty in contractibility related to the increasing amount of collagenous or hyaline tissue present in their walls.
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Fisch et al. (1972) conducted an observational in Aging. Aging was evaluated on Histological degenerative changes in the arterial vessels of the internal auditory meatus. Aging is associated with progressive thickening of the tunica adventitia, increased collagenous tissue, and loss of fibroblasts in the arterial vessels of the internal auditory meatus.
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