trochlear वाक्य
उदाहरण वाक्य
मोबाइल
- The trochlear nerve emerges from the dorsal aspect of the brainstem at the level of the caudal mesencephalon, just below the inferior colliculus.
- CN III ), which may affect the parasympathetic input to the superior oblique ( innervated by trochlear nerve a . k . a.
- The scarred ligaments shorten, making it easier for the patella to slip off the medial trochlear ridge and reducing locking of the patella.
- More rarely, the oculomotor nerve and trochlear nerve ( weakness of the muscles of facial expression on one or both sides of the face.
- An exception is the trochlear nucleus in the brainstem, which innervates the superior oblique muscle of the eye on the opposite side of the face.
- In patients with HGPPS, the absence of Robo3 / Rig1 prevents axons in the corticospinal tract and the trochlear nerve from growing past the midline.
- The unique features of the trochlear nerve, including its dorsal exit from the brainstem and its contralateral innervation, are seen in the primitive brains of sharks.
- Alfred Bielschowsky's head tilt test is a test for palsy of the superior oblique muscle caused by damage to cranial nerve IV ( trochlear nerve ).
- Trochleitis was first identified in 1984 by Tychsen, et al . in a study of thirteen patients with orbital pain and point tenderness over the trochlear region.
- The accurate adaptation of the trochlea of the humerus, with its prominences and depressions, to the trochlear notch of the ulna, prevents any lateral movement.
- Superior oblique myokymia is an uncommon neurological condition caused by vascular compression of the trochlear nerve resulting in repeated, brief, involuntary episodes of movement of the eye.
- It has less commonly been associated with spasm of nystagmus and associated ocular motility deficits including skew deviation, oculomotor nerve palsy, trochlear nerve palsy and internuclear ophthalmoplegia.
- Patients with trochleitis typically experience a dull fluctuating aching over the trochlear region developing over a few days . Some may also feel occasional sharp pains punctuating the ache.
- Patients with an important supra-trochlear spur as in type B and D trochlear dysplasia and chronic instability are more reluctant to conservative and softtissue surgical treatment options.
- Patients with an important supra-trochlear spur as in type B and D trochlear dysplasia and chronic instability are more reluctant to conservative and softtissue surgical treatment options.
- To compensate for this, patients with trochlear nerve palsies tilt their heads to the opposite side, in order to fuse the two images into a single visual field.
- Netrin-1 has also been shown to act as a chemorepellent " in vivo " for trochlear motor axons that migrate dorsally away from the floor plate.
- Cranial nerve III ( the occulomotor nerve ) emerges ventrally from the midbrain, while the CN IV ( the trochlear nerve ) emerges out from the dorsal aspect of midbrain.
- Oddly, fibers from the trochlear nucleus cross over in the midbrain at the superior medullary velum and exit posteriorly, ( this is the only cranial nerve to do so ).
- Damages to these structures produce the ipsilateral presentation of paralysis or palsy due to the lack of cranial nerve decussation ( aside from the trochlear nerve ) before innervating their target muscles.
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