منابع مشابه
Modeling of patient-specific three semicircular canals
The semicircular canals (SCC) are fluid-filled inner ear structures designed to detect circular or angular motion. In this study we modeled three-dimensional biomechanical model of SCC and compared results with real patient case for the Benign Paroxysmal Positional Vertigo (BPPV) disease. The model consists of full 3D fluid-structure interaction incorporating particles, wall, cupula deformation...
متن کاملThe dimensions and sensitivities of semicircular canals.
With this definition it is possible to compare the mechanical sensitivities of all semicircular canals. For this purpose three different approaches seem feasible. (1) The effect of growth of one particular semicircular canal on G in one species. (2) Comparison of values of G for the three semicircular canals in one species. (3) Comparison of values of G of the horizontal canal in different spec...
متن کاملSemicircular canal plane head impulses detect absent function of individual semicircular canals.
We studied the human vestibulo-ocular reflex (VOR) in response to head 'impulses': brief, unpredictable, passive, high-acceleration (up to 4000 degrees/s2), low-amplitude (20-30 degrees) head rotations. We delivered the head impulses approximately in the plane of the semicircular canal (SCC) being tested. To test the anterior and posterior SCCs, the head impulses were delivered in a diagonal pl...
متن کاملPosture control in Pusher syndrome: influence of lateral semicircular canals.
UNLABELLED Pusher syndrome is an interesting disorder of balance in patients with encephalic lesions characterized by the peculiar behavior of actively pushing away from the non-hemiparetic side and resisting against passive correction, with a tendency to fall toward the paralyzed side. The role of vestibular system on the pushing behavior is not clear. AIM To evaluate horizontal semicircular...
متن کاملSemicircular Canals Circumvent Brownian Motion Overload of Mechanoreceptor Hair Cells
Vertebrate semicircular canals (SCC) first appeared in the vertebrates (i.e. ancestral fish) over 600 million years ago. In SCC the principal mechanoreceptors are hair cells, which as compared to cochlear hair cells are distinctly longer (70 vs. 7 μm), 10 times more compliant to bending (44 vs. 500 nN/m), and have a 100-fold higher tip displacement threshold (< 10 μm vs. <400 nm). We have devel...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1926
ISSN: 0035-9157
DOI: 10.1177/003591572601901223