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Sixth nerve palsy, or abducens nerve palsy, is a disorder associated with dysfunction of cranial nerve VI (the abducens nerve), which is responsible for causing contraction of the lateral rectus muscle to abduct (i.e., turn out) the eye. [1] The inability of an eye to turn outward, results in a convergent strabismus or esotropia of which the ...
The abducens nerve or abducent nerve, also known as the sixth cranial nerve, cranial nerve VI, or simply CN VI, is a cranial nerve in humans and various other animals that controls the movement of the lateral rectus muscle, one of the extraocular muscles responsible for outward gaze.
The paramedian pontine reticular formation (PPRF) (also known as paraabducens nucleus) is a subset of neurons of the oral and caudal pontine reticular nuclei mediating horizontal gaze. [1] It is situated in the pons adjacent to the abducens nucleus. [2] It projects to the ipsilateral abducens (cranial nerve VI) nucleus, and contralateral ...
Pons. Three Parts: V 1 (ophthalmic nerve) is located in the superior orbital fissure V 2 (maxillary nerve) is located in the foramen rotundum. V 3 (mandibular nerve) is located in the foramen ovale. Receives sensation from the face, mouth and nasal cavity, and innervates the muscles of mastication. VI.
The cranial nerve exam is a type of neurological examination. It is used to identify problems with the cranial nerves by physical examination. It has nine components. Each test is designed to assess the status of one or more of the twelve cranial nerves (I-XII). These components correspond to testing the sense of smell (I), visual fields and ...
Components of the syndrome include: retroorbital pain due to pain in the area supplied by the ophthalmic branch of the trigeminal nerve (fifth cranial nerve), abducens nerve palsy (sixth cranial nerve) [4] otitis media Other symptoms can include photophobia, excessive lacrimation, fever, and reduced corneal sensitivity. The syndrome is classically caused by the spread of an infection into the ...
The abducens nucleus is the originating nucleus from which the abducens nerve (VI) emerges—a cranial nerve nucleus. This nucleus is located beneath the fourth ventricle in the caudal portion of the pons near the midline, [1] medial to the sulcus limitans. The abducens nucleus along with the internal genu of the facial nerve make up the facial ...
The clivus (/ ˈklaɪvəs /, [1] Latin for "slope") or Blumenbach clivus is a part of the occipital bone at the base of the skull. [2] It is a shallow depression behind the dorsum sellae of the sphenoid bone. It slopes gradually to the anterior part of the basilar occipital bone at its junction with the sphenoid bone.