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In neuroanatomy, the trigeminal nerve (lit. triplet nerve), also known as the fifth cranial nerve, cranial nerve V, or simply CN V, is a cranial nerve responsible for sensation in the face and motor functions such as biting and chewing; it is the most complex of the cranial nerves.
The trigeminal nerve is a paired cranial nerve that has three major branches: the ophthalmic nerve (V 1), the maxillary nerve (V 2), and the mandibular nerve (V 3). One, two, or all three branches of the nerve may be affected. Trigeminal neuralgia most commonly involves the middle branch (the maxillary nerve or V 2) and lower branch (mandibular ...
The trigeminal nerve goes from the brain to the face and branches out into three locations (hence the tri in the name). One branch runs along the scalp, providing sensation there.
S4 and S5 – In the perianal area, less than one cm lateral to the mucocutaneous zone; Following is a list of cranial nerves responsible for sensation from the face: V1 (1st division of the trigeminal nerve) - associated with herpes zoster ophthalmicus; V2 (2nd division of the trigeminal nerve) V3 (3rd division of the trigeminal nerve)
The trigeminal lemniscus contains two main divisions: The ventral trigeminal tract - consists of second-order axons from the spinal trigeminal nucleus. These fibers cross the midline and ascend to the contralateral thalamus. The dorsal trigeminal tract - consists of second-order axons from the principal sensory nucleus of trigeminal nerve ...
Composition and central connections of the spinal nerves; Pathways from the brain to the spinal cord; The meninges of the brain and medulla spinalis; The cerebrospinal fluid; The cranial nerves. The olfactory nerves; The optic nerve; The oculomotor nerve; The trochlear nerve; The trigeminal nerve; The abducens nerve; The facial nerve; The ...
The upper motor neurons of the corticobulbar tract synapse with interneurons or directly with the lower motor neurons located in the motor cranial nerve nuclei, namely oculomotor, trochlear, motor nucleus of the trigeminal nerve, abducens, facial nerve and accessory and in the nucleus ambiguus to the hypoglossal, vagus and accessory nerves. [6]
In neuroanatomy, the mandibular nerve (V 3) is the largest of the three divisions of the trigeminal nerve, the fifth cranial nerve (CN V). Unlike the other divisions of the trigeminal nerve ( ophthalmic nerve , maxillary nerve ) which contain only afferent fibers , the mandibular nerve contains both afferent and efferent fibers .