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Cranial nerves are the nerves that emerge directly from the brain (including the brainstem), of which there are conventionally considered twelve pairs.Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck, including the special senses of vision, taste, smell, and hearing.
Leaving the skull, the nerve travels through the jugular foramen with the glossopharyngeal and vagus nerves. [8] The spinal accessory nerve is notable for being the only cranial nerve to both enter and exit the skull. This is due to it being unique among the cranial nerves in having neurons in the spinal cord. [9] After leaving the skull, the ...
The base of skull, also known as the cranial base or the cranial floor, ... arteries and cranial nerves. The cranial nerves as they exit through various foramina.
[1] [2] The nerve typically travels from the pons through the facial canal in the temporal bone and exits the skull at the stylomastoid foramen. [3] It arises from the brainstem from an area posterior to the cranial nerve VI (abducens nerve) and anterior to cranial nerve VIII (vestibulocochlear nerve).
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 Abducens: Mainly motor Nuclei lying under the floor of the ...
It exits the skull via canaliculus innominatus [4] and enters the infratemporal fossa. In the fossa, its fibres synapse at the otic ganglion. Post-ganglionic fibres then exit the ganglion to briefly travel along with the auriculotemporal nerve (a branch of the mandibular nerve (CN V 3)) before entering the substance of the parotid gland ...
The foramen rotundum is a circular hole in the sphenoid bone of the skull. It connects the middle cranial fossa and the pterygopalatine fossa. It allows for the passage of the maxillary nerve (V 2), a branch of the trigeminal nerve.
A jugular foramen is one of the two (left and right) large foramina (openings) in the base of the skull, located behind the carotid canal. It is formed by the temporal bone and the occipital bone. It allows many structures to pass, including the inferior petrosal sinus, three cranial nerves, the sigmoid sinus, and meningeal arteries.