WebSpecialty. Ophthalmology. Internuclear ophthalmoplegia ( INO) is a disorder of conjugate lateral gaze in which the affected eye shows impairment of adduction. When an attempt is … WebThe PPRF signals the abducens nucleus an ipsilateral horizontal eye movement whereupon the nucleus contracts the ipsilateral rectus lateralis muscle via the abducens nerve. Simultaneously, the contralateral oculomotorius nucleus signals via the MLF (medial longitudinal fasciculus) to contract the ipsilateral rectus medialis muscle.
Diagrammatic representation of lateral gaze palsy caused
WebSep 16, 2024 · Footnote: Diagram showing the mechanism for one-and-a-half syndrome. (A) Pathologic lesion (blue oval shaded area) in the dorsal pontine tegmentum involves both … WebA 66 year old female developed a paralytic pontine exotropia following a pontomedullary stroke. Histopathologic study of the affected brainstem revealed the most significant … bcp とは何の略ですか
[A case of infarction in the pontine tegmentum involving the …
Webを示すものであり，左mlfと左pprfの機 能改善に差異があった可能性が考えられた． mlfが障害されている場合，固視の際に内 転筋への興奮伝達が不十分となる一方で pprfの過 … WebWhile the PPRF contains the horizontal burst (saccade generating) neurons, the rostral interstitial MLF (riMLF) is responsible for torsional fast phases and vertical saccades. Because the riMLF projections to the depressors are ipsilateral whereas the projections to the elevators are bilateral, a unilateral riMLF lesion tends to affect downward more than … The PPRF is located anterior and lateral to the medial longitudinal fasciculus (MLF). It receives input from the superior colliculus via the predorsal bundle and from the frontal eye fields via frontopontine fibers. The rostral PPRF probably coordinates vertical saccades; the caudal PPRF may be the generator of … See more The paramedian pontine reticular formation, also known as PPRF or paraabducens nucleus, is part of the pontine reticular formation, a brain region without clearly defined borders in the center of the See more • Internuclear ophthalmoplegia • Multiple sclerosis • One and a half syndrome See more Unilateral lesions of the PPRF produce characteristic findings: • Loss of horizontal saccades directed towards the side of the lesion, no matter the current position of gaze • Contralateral gaze deviation (acute lesions, such as early See more bcpとは何の略