trochlear nerve造句

• Homologous trochlear nerves are found in all jawed vertebrates.
• The trochlear nerve comes out of the posterior surface of the midbrain, below the inferior colliculus.
• The trochlear nerve then goes around the midbrain, and is visible coming out of the sides.
• Damage to the trochlear nerve ( IV ) can also cause diplopia with the eye adducted and elevated.
• This is due to impairment in the superior oblique muscle, which is innervated by the trochlear nerve.
• Directly rostral to the superior cerebellar peduncle, there is the superior medullary velum and then the two trochlear nerves.
• The nuclei of the oculomotor nerve ( III ) and trochlear nerve ( IV ) are located in the midbrain.
• The oculomotor nerve comes out between the peduncles, and the trochlear nerve is visible wrapping around the outside of the peduncles.
• 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.
• More rarely, the oculomotor nerve and trochlear nerve ( weakness of the muscles of facial expression on one or both sides 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 ).
• 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.
• 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.
• 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.
• 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.
• The inferior colliculi together with the caudal to its counterpart-the superior colliculus-above the trochlear nerve, and at the base of the projection of the medial geniculate nucleus and the lateral geniculate nucleus.