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30 paź 2023 · The trochlear nerve is a purely motor nerve, responsible for providing general somatic efferent (GSE)/motor innervation to just one muscle, the superior oblique muscle of the eye, on the contralateral side of its associated nucleus.
16 kwi 2022 · The trochlear nerve is the fourth(CN IV) and thinnest cranial nerve. It exits the midbrain posteriorly, eventually passes into the cavernous sinus and into the orbit where it supplies superior oblique muscle with motor fibers (TA: nervus trochlearis or nervus cranialis IV).
The trochlear nerve (/ ˈ t r ɒ k l ɪər /), [1] (lit. pulley-like nerve) also known as the fourth cranial nerve, cranial nerve IV, or CN IV, is a cranial nerve that innervates a single muscle - the superior oblique muscle of the eye (which operates through the pulley-like trochlea).
The trochlear nerve emerges from the dorsal midbrain just inferior to the inferior colliculus. It runs anteriorly, piercing the dura covering the apex of the petrous portion of the temporal bone, roughly between the trigeminal and oculomotor nerves.
Content:0:00 Introduction00:52 Trochlear Nerve Scheme02:08 Course of the Trochlear Nerve06:07 Functions of the Superior Oblique07:55 Trochlear Nerve Palsy09:...
15 lip 2023 · The trochlear nerve is the fourth cranial nerve (CN IV) and one of the ocular motor nerves that controls eye movement. The trochlear nerve, while the smallest of the cranial nerves, has the longest intracranial course as it is the only nerve to have a dorsal exit from the brainstem.
