Is a mixed nerve containing both sensory and motor fibers. Mandibular Division of Trigeminal Nerve ( CN V3) Sensory and motor (mixed). The trigeminal nerve as the name indicates is composed of three large branches. However, some injuries may be permanent with varying degrees of sensory impairment ranging from mild numbness (hypoesthesia) to complete anesthesia. The ophthalmic and the maxillary nerves only have sensory functions, while the mandibular nerve has both sensory and motor functions. It has three sensory branches (ophthalmic, maxillary and mandibular), and it is tested by lightly touching the face with a piece of cotton wool followed by a blunt pin in each division on each side of the face. Thus any threat to this system, including pain, is physiologically wired for the patient to run away. It is responsible for sensation in the face and certain motor functions such as biting, chewing, and swallowing. From the trigeminal ganglion, the three terminal divisions of the trigeminal nerve arise; the ophthalmic (V1), maxillary (V2) and mandibular (V3) nerves. The sensory trigeminal nerve nuclei are the largest of the cranial nerve nuclei, and extend through the whole of the midbrain, pons and medulla, and into the high cervical spinal cord.. In the EMG lab, lesions of the facial nerve are fairly common, thus requiring quality studies of the In addition, acquiring superior Blink Reflex facial nerve. Abstract Object: The trigeminal nerve conducts both sensory and motor impulses. Mandibular Division of Trigeminal Nerve ( CN V3) Sensory and motor ( mixed ). Helbig et al. And sensory root arises from trigeminal ganglion. The trigeminal nerve (CN V) transmits both sensory information about facial sensation and motor information to the muscles of mastication. Is the nerve of 1 st pharyngeal arch and supplies all structures derived from this arch. The nucleus is divided into three parts, from rostral to caudal (top to bottom): The mesencephalic nucleus because. Like the other treatments, these also come with side effects: drowsiness, dizziness, nausea, constipation, and light headedness have all been reported Microsurgical nerve repair has significantly advanced the treatment of brachial plexus injuries by providing techniques to reinnervate distal target muscles while circumventing the area of injury Its fibres are only distributed to the mandibular division. Cheek, lower teeth, mandible, side of the head and mucosa of the floor of the mouth; sensory receptors on the tongue related to touch, temperature, and pressure, but not taste The trigeminal nerve is the largest cranial nerve and has both motor and sensory functions.

In pons motor nucleus is located in the floor of forth ventricle. It's a large, three-part nerve in your head that provides sensation. The ophthalmic and maxillary nerves are purely sensory. FInd information about the trigeminal nerve, including its functions, how doctors test it, and the conditions associated. The mandibular nerve has sensory and motor functions. 19. CN V 3 does not enter the cavernous sinus. The trigeminal nerve is the fifth cranial nerve (CN V). called also trigeminal. The trigeminal nerve as the name indicates is composed of three large branches. TN pain is often triggered by light touch or movement of the face or mouth. TN involves the trigeminal nerve, which carries sensory information to the brain from the face and mouth. How do I calm my trigeminal nerve? The chief sensory nucleus (main sensory nucleus)

The pterygopalatine ganglion is associated with the maxillary nerve and innervates the lacrimal gland and nasal and oral mucous membranes. Sensory face motor supply diagram nerve trigeminal branches anatomy nerves cranial facial head gross dentistry cheek emedicine medscape motors microscopic. In some cases, it is accompanied by a brief facial spasm or tic. Check the full list of possible causes and conditions now! Separate superior and inferior motor roots typically emerge from the pons just anterosuperomedial to the entry point of the sensory root, but to date these two motor roots have not been adequately displayed on magnetic resonance (MR) images. reported TN accompanied by veins passing through the nerve in 3 patients. How to Repair Nerve Damage In the majority of cases, a single nerve is affected, giving a numb area on the skin This may include medicines that are normally used for treating epilepsy or depression because of the way they change electrical activity in nerves A nerve injury can occur as the result of an accident and trauma, as in a car accident or from a sports injury, Motor branch to: The muscles of mastication Buccal nerve: Sensory innervation to the mucous membrane of the cheek and buccal mucous membrane of the mandibular molars The anterior division is The trigeminal 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 nerves connected to the spinal cord are the spinal nerves. 19. Also Know, what are the branches of the trigeminal nerve? The motor nucleus of the trigeminal nerve is the only motor nucleus of the four main trigeminal nerve nuclei.. Specialty: Neurology: Symptoms Its primary function is to provide sensory and motor innervation to the face. Trigeminal Nerve. The term "trigeminal" comes from the Latin "trigeminus" meaning "threefold," referring to the three divisions (ophthalmic, maxillary and mandibular) of this nerve. The large sensory root and smaller motor root leave the brainstem at the midlateral surface of pons. Also Know, what is Tri neuralgia? All of the spinal nerves are combined sensory and motor axons that separate into two nerve roots. Fifth Cranial Nerve Test: It is a mixed nerve. They are the ophthalmic nerve (V1, sensory), maxillary nerve (V2, sensory), and mandibular nerve (V3, motor and sensory) branches. Select the mandibular branch of the trigeminal nerve and read its description: a. The most commonly trigeminal neuralgia is associated with maxillary (CN V2) and mandibular divisions (CN V3) of the trigeminal nerve in the body. Search: Treatment For Nerve Damage. Motor fibres are only distributed to the mandibular division (V3). Helbig divides TN into two categories, type I: The blood vessel crosses the combined sensory and motor trigeminal nerve branches between motion and sensation; type II: The blood vessel crosses the sensory branches of the trigeminal nerve . Trigeminal: Branchial Motor: General Sensory Muscles of mastication Sensory for head/neck, sinuses, meninges, & external surface of tympanic membrane: Abducens: Somatic Motor: Lateral rectus muscle: Facial: Branchial Motor Visceral Motor General Sensory Special Sensory: Muscles of facial expression Return to Lab 1 immune responses, digestion and heart rate, and the trigeminal nerve, which transmits sensory information to the face and jaw. These sensory fibers originate from receptors associated with which regions? The trigeminal nerve as the name indicates is composed of three large branches. reported TN accompanied by veins passing through the nerve in 3 patients. The trigeminal nerve, also known as the 5th cranial nerve or cranial nerve 5 (CN V), has both motor and sensory functions. What does the trigeminal nerve do? Function https://teachmeanatomy.info/head/cranial-nerves/trigeminal-nerve The nucleus supplies the four large muscles of mastication (temporalis, masseter, medial pterygoid, and lateral pterygoid) and four smaller muscles derived from the mandibular branchial arch (tensor tympani, tensor palati, anterior belly of digastric, The vagus nerve is a mixed nerve, as it contains both afferent (sensory) Loewi deduced that the cardiac rhythm is controlled by a chemical substance (which was in the liquid) which is secreted by the vagus nerve Uterine fibroids, another common cause of hysterectomies, now have alternative treatments to removal When the nerve is stimulated, calmness pervades Introduction Trigeminal neuralgia (TN) is a very severe, electric shock-like facial pain. Trigeminal nerve : Schematic illustration of the trigeminal nerve (labeled Sensory root above) and the structures it innervates in the face and mouth. Similarly, the trigeminal nerve (V) has its origin at the Pons and the pontine-medulla junction gives rise to abducens, facial, and vestibulocochlear (VI-VIII) nerves. Articles. 6. It is a motor nerve to medial pterygoid muscle 81. Ophthalmic Division: It supplies the conjunctival surface of the upper lid only [] The motor nucleus of the trigeminal nerve is the only motor nucleus of the four main trigeminal nerve nuclei.. The motor root passes inferiorly to the sensory root, along the floor of the trigeminal cave. One section called the mandibular nerve involves motor function to help you chew and swallow. This branch is sensory/motor/ mixed (circle one). TN pain starts suddenly and usually only lasts a few seconds. The trigeminal nerve is the fifth cranial nerve. Cheek, lower teeth, mandible, side of the head and mucosa of the floor of the mouth; sensory receptors on the tongue related to touch, temperature, and pressure, but not taste trigeminal nerve branches sensory ophthalmic v2 v1 v3 handout listed reference division eye divisions maxillary mandibular. city of miami beach building department inspection routes; best tasting pole beans; the reserve north course flyover; cypress springs estates; wild squirrel nut butter after shark tank Most commonly the pain radiates to the mandibular or maxillary regions. 1. The trigeminal nerve consists of three branches on either side that extend to different territories of the face. The glossopharyngeal nerve (/lsofrn(d)il, -frndil/), known as the ninth cranial nerve (CN IX), is a mixed nerve that carries afferent sensory and efferent motor information.It exits the brainstem out from the sides of the upper medulla, just anterior (closer to the nose) to the vagus nerve. The arrangement of these nerves is much more regular than that of the cranial nerves. When it comes to the trigeminal nerve, or CN V, tri means three, so right off the bat, you can tell that the trigeminal nerve has three major branches: the ophthalmic nerve, or V1, the maxillary nerve, or V2, and the mandibular nerve, or V3.. The trigeminal nerve as the name indicates is composed of three large branches. the sensory. The trigeminal nerve is the largest cranial nerve (CN V); it transmits sensory information from the scalp, face, eye orbit, paranasal sinuses, and part of the tongue, and also plays a motor role for the mastication and facial expression muscles. 14.1).The large sensory root is made up of about 50 fascicles. Also Know, what are the branches of the trigeminal nerve? The trigeminal , cranial nerve V, is a mixed nerve that carries both sensory and motor information. Branches trigeminal nerve slideshare. Introduction. Branches trigeminal nerve slideshare. V1, also known as the ophthalmic nerve, provides sensory innervation to the forehead and upper What are the three branches of trigeminal nerve and cite their innervated structures? Trigeminal Nerve. It has two roots- large sensory and smaller motor. These sensory fibers originate from receptors associated with which regions? Helbig divides TN into two categories, type I: The blood vessel crosses the combined sensory and motor trigeminal nerve branches between motion and sensation; type II: The blood vessel crosses the sensory branches of the trigeminal nerve . The trigeminal nerve is the main sensory cranial nerve protecting the most important structures underpinning our survival (brain, sight, smell, airway and eating).

Motor fibres are only distributed to the mandibular division (V3).

Gross anatomy. They are the ophthalmic (V 1, sensory), maxillary (V 2, sensory) and mandibular (V 3, motor and sensory) branches. In Meckels cave, the sensory root of CN V 3 lies inferior to V 1 and V 2, and exits the skull via the Foramen Oval. Medically reviewed by Heidi Moawad, M.D.

The trigeminal nerve as the name indicates is composed of three large branches. trigeminal nerve branches sensory ophthalmic v2 v1 v3 handout listed reference division eye divisions maxillary mandibular. It has two roots- large sensory and smaller motor. b. The trigeminal nerve (fifth cranial nerve, CN V, Latin: nervus trigeminus) is a mixed nerve containing sensory and motor fibers.The trigeminal nerve provides sensory innervation for the mucous membrane of the oral and nasal cavities, the ear, conjunctiva, and the skin of the face. They are the ophthalmic (V 1, sensory), maxillary (V 2, sensory) and mandibular (V 3, motor and sensory) branches. The mandibular nerve has both sensory and motor functions. The trigeminal nerve has three sub-divisions , each of which has its own broad set of functions (not all are covered below): Cheek, lower teeth, mandible, side of the head and mucosa of the floor of the mouth; sensory receptors on the tongue related to touch, temperature, and pressure, but not taste The nerve is also both motor and sensory to the muscles of mastication. The motor component controls the muscles of mastication ( chewing), and the sensory component carries sensory information from the face and jaw.

The glossopharyngeal nerve (/lsofrn(d)il, -frndil/), known as the ninth cranial nerve (CN IX), is a mixed nerve that carries afferent sensory and efferent motor information.It exits the brainstem out from the sides of the upper medulla, just anterior (closer to the nose) to the vagus nerve. Facial Nerves | ClipArt ETC Sensory function tested by using a small part of cotton and a pin over each area of the face.

The motor (efferent) portion is contained in the mandibular branch, and it innervates the muscles of mastication (temporalis, masseter, medial and lateral The principal sensory nucleus of trigeminal nerve (or chief sensory nucleus of V, main trigeminal sensory nucleus) is a group of second-order neurons which have cell bodies in the caudal pons.. Trigeminal nerve. Stroke, Dysphasia and Aphasia & Trigeminal Neuralgia Symptom Checker: Possible causes include Multiple Sclerosis. The trigeminal nerve consists of three branches on either side that extend to different territories of the face. The trigeminal nerve is the fifth cranial nerve (CN V). The motor root passes inferiorly to the sensory root, along the floor of the trigeminal cave. Tooth pain for example, is carried by the trigeminal nerve. The trigeminal nerve complex is a very important and somewhat unique component of the nervous system. The motor root passes inferiorly to the sensory root, along the floor of the trigeminal cave. Its primary function is to provide sensory and motor innervation to the face. Abducens nerve, it is a motor nerve responsible for eye movement innervating the lateral rectus muscles. The motor trigeminal nucleus is a large group of motor neurons lying medial to the principal sensory trigeminal nucleus. The trigeminal nerve is a large nerve that contains both motor and sensory components. Nerve divides in three division i.e Ophthalmic division, maxillary division and mandibular division. The largest of the cranial nerves. 5. trigeminal nerve, it is motor and sensory nerve and is responsible for chewing and sensation of the face, nose and mouth. It emerges from the pons by two roots of unequal size: a small motor root and a large sensory root (Fig. The trigeminal nerve provides sensory supply to the face and mouth. The motor nucleus is a paired structure located within the mid-to-upper pons ().It lies anteromedial to the main sensory nucleus and adjacent to the lateral aspect of the floor of the fourth ventricle.. Innervation. The motor nucleus of the Trigeminal Nerve Overview. The sensory information is sent forth through the main trigeminal nucleus and nuclei of the thalamus before it travels to the cerebral cortex and synapses in the post-central gyrus. Katusic S(1), Williams DB, Beard CM, Bergstralh EJ, Kurland LT Neuralgia is a condition that causes shooting and burning pain in the nerves This condition affects the third cranial nerve The most appropriate types of massage used to breakdown scar tissue include sports massage, deep tissue massage and remedial massage It emerges from the side of the pons, near its upper border, by a small motor and a large sensory rootthe former being situated in front of and medial to the latter. The trigeminal nerve consists of three branches on either side that extend to different territories of the face. Return to Lab 1 The large sensory root and smaller motor root leave the brainstem at the midlateral surface of pons. Its primary function is to provide sensory and motor innervation to the face. The ophthalmic nerve and maxillary nerve travel lateral to the cavernous sinus exiting the cranium via the superior orbital fissure and foramen rotundum respectively. Articles are a collaborative effort to provide a single canonical page on all topics relevant to the practice of radiology. The trigeminal, the largest cranial nerve, is the sensory supply to the face, the major part of the scalp, the teeth, the oral and nasal cavity, and the motor supply to the masticatory and some other muscle. A global group of dedicated editors oversee accuracy, consulting with expert advisers, and constantly reviewing additions. Its motor functions help a person to chew and clench the teeth. b. Helbig et al. The ophthalmic nerve and maxillary nerve travel lateral to the cavernous sinus exiting the cranium via the superior orbital fissure and foramen rotundum respectively. 2) The maxillary nerve (CN V2) contains only sensory fibers. Sensory roots take origin from gesserian ganglion (trigeminal ganglion). Motor root is attached to the pons. It also contains proprioceptive nerve fibers from the masticatory and probably the extraocular muscle. Motor fibres are only distributed to the mandibular division (V3). The trigeminal nerve is the part of the nervous system responsible for sending pain, touch and temperature sensations from your face to your brain . Select the mandibular branch of the trigeminal nerve and read its description: a. Trigeminal Nerve. The sensory root (the main portion of the nerve) arises from cells in the semilunar ganglion (also known as the Gasserian, or trigeminal, ganglion) in a pocket of dura (Meckels cavity) lateral to the cavernous sinus. Its fibres are only distributed to the mandibular division. The motor root lies medial to the large sensory root at the site of attachment to the pons ( Figure 17.16 ). Search: Glossopharyngeal Neuralgia Mayo Clinic. Largest of the three divisions of V nerve. The glossopharyngeal nerve (/lsofrn(d)il, -frndil/), known as the ninth cranial nerve (CN IX), is a mixed nerve that carries afferent sensory and efferent motor information. In Meckels cave, the sensory root of CN V 3 lies inferior to V 1 and V 2, and exits the skull via the Foramen Oval. These branches join at the trigeminal ganglia which a The trigeminal nerve (cranial nerve V), and it contains both sensory and motor fibers. The origin of the trigeminal nerve is the annular protuberance at the limit of the cerebellar peduncles. Terms in this set (28) Spinal trigeminal tract. Helbig et al. The motor component controls the muscles of mastication ( chewing), and the sensory component carries sensory information from the face and jaw. trigeminal nerve (CN V) and the facial nerve (CN VII) are both mixed nerves, that is; they carry both motor and sensory fibers. It can transmit both sensory and motor information to the brain. Is the nerve of 1 st pharyngeal arch and supplies all structures derived from this arch. . The nerve emerges from the brainstem at the level of the pons, and then divides into 3 branches, known as the V1, V2, and V3 divisions of the trigeminal nerve. 3) The mandibular nerve (CN V3) contains both sensory and motor fibers. The sensory trigeminal nerve nuclei are the largest of the cranial nerve nuclei. : either of a pair of large mixed nerves that are the fifth cranial nerves and supply motor and sensory fibers mostly to the face. The trigeminal ganglion is located lateral to the cavernous sinus, in a depression of the temporal bone known as the trigeminal cave or Meckels cave. The semilunar (gasserian or trigeminal) ganglion is the great sensory ganglion of CN V. It contains the sensory cell bodies of the 3 branches of the trigeminal nerve (the ophthalmic, mandibular, and maxillary divisions). Damaged nerves may send signals to the bladder at the wrong time, causing its muscles to squeeze without warning A peripheral nerve injury can result in a minor injury or a fully severed nerve Applying ice to the sore area Acupressure may help to relieve many of the symptoms associated with neuropathy, including a tingling or burning The motor root passes inferiorly to the sensory root, along the floor of the trigeminal cave. It receives information about discriminative sensation and light touch of the face as well as conscious proprioception of the jaw via first order neurons of CN V.

The trigeminal, cranial nerve V, is a mixed nerve that carries both sensory and motor information. Motor fibres are only distributed to the mandibular division (V3). Trigeminal neuralgia; Other names: Tic douloureux, prosopalgia, Fothergill's disease, suicide disease: The trigeminal nerve and its three major divisions (shown in yellow): the ophthalmic nerve (V 1), the maxillary nerve (V 2), and the mandibular nerve (V 3). Helbig divides TN into two categories, type I: The blood vessel crosses the combined sensory and motor trigeminal nerve branches between motion and sensation; type II: The blood vessel crosses the sensory branches of the trigeminal nerve . It begins in the middle cranial fossa. The twelve cranial nerves, the hypoglossal nerve included, emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from the vertebral column There were rightsided cerebellar signs Thereafter, the trigeminal and oculomotor nerve roots were harvested for further processing Quais so os nervos cranianos? 5th (trigeminal) 1. It is responsible for the sensory signals that arise from the most part of the face, mouth, nose, meninge s, and facial muscles, and also for the motor commands carried to the masticatory muscles. The motor root passes inferiorly to the sensory root, along the floor of the trigeminal cave. It is a mixed nerve - the sensory part of the nerve supplies the face (includes touch, pain, and temperature) and the motor part is for muscles of mastication. From the trigeminal ganglion, the three terminal divisions of the trigeminal nerve arise; the ophthalmic (V1), maxillary (V2) and mandibular (V3) nerves. It is typically characterised by short term, unilateral facial pain following the sensory distribution of cranial nerve V, the Trigeminal Nerve. They are the ophthalmic (V 1, sensory), maxillary (V 2, sensory) and mandibular (V 3, motor and sensory) branches. Beside this, what are the branches of trigeminal nerve? The trigeminal nerve is the part of the nervous system responsible for sending pain, touch and temperature sensations from your face to your brain. reported TN accompanied by veins passing through the nerve in 3 patients. Its primary function is to provide sensory and motor innervation to the face. Score: 4.7/5 (64 votes) . Tooth pain for example, is carried by the trigeminal nerve. trigeminal neuralgia has no known cause but involves the afferent nerves of the _____ cranial nerve. Largest of the three divisions of V nerve. Talk to our Chatbot to narrow down your search. b. Figure 1. The motor root passes inferiorly to the sensory root, along the floor of the trigeminal cave. Composed of three large branches: the ophthalmic (V1, sensory), maxillary (V2, sensory) and mandibular (V3, motor and sensory) branches. YouTube. The trigeminal nerve is the largest cranial nerve and is the great sensory nerve of the head and face, and the motor nerve of the muscles of mastication. Motor Root 2. the nerve: a case report Zhang Xinyu 1, Li Yang 1, Zhou Mi 2 and Wei Zhenqing 1* Abstract Background: An anterior inferior cerebellar artery (AICA) that crosses the right trigeminal nerve is The motor root originates from cells located in the masticator motor nucleus of trigeminal nerve located in the midpons of the brainstem. The trigeminal ganglion, also known as the Gasser, Gasserian or semilunar ganglion, is the large crescent-shaped sensory ganglion of the trigeminal nerve located in the trigeminal cave (Meckel cave) surrounded by cerebrospinal fluid.The ganglion contains the cell bodies of the sensory root of the trigeminal nerve. What is the size of the trigeminal nerve? The Sulcus Limitans Intervenes between Motor and Sensory Nuclei of Cranial Nerves Vision grossly intact to fingers and colors in both eyes EKG; _____; urinalysis His visual acuity was grossly intact V: Good sensation to light touch and pin prick at V1, V2, V3 V: Good sensation to light touch and pin prick at V1, V2, V3. The efferent fibers originate in the motor nucleus of V in the pons and controls the muscles involved in mastication. CN V 3 have two roots: The trigeminal nerve is the fifth cranial nerve (CN V). The trigeminal nerve as the name indicates is composed of three large branches. Sensory inputs from the ophthalmic (V 1), maxillary (V 2), and mandibular (V 3) divisions are conveyed via their cell bodies in the trigeminal ganglion (TG) to the principal sensory trigeminal nucleus (PSTN) and/or the spinal trigeminal nucleus (STN), which has three parts: the nucleus oralis (NO), nucleus This branch is sensory/motor/ mixed (circle one). The trigeminal ganglion is located lateral to the cavernous sinus, in a depression of the temporal bone known as the trigeminal cave or Meckels cave.

https://www.verywellhealth.com/trigeminal-nerve-anatomy-4588724 Extend through the whole of the midbrain, pons and medulla, and into the high cervical spinal cord. The sensory axons enter the spinal cord as the dorsal nerve root. The trigeminal nerve (V) is the largest cranial nerve, and it has both a sensory and a motor division. Branches trigeminal nerve slideshare. The trigeminal nerve is the largest cranial nerve and is the great sensory nerve of the head and face, and the motor nerve of the muscles of mastication. In the anterior 2/3, general sensation is supplied by the trigeminal nerve (CNV). trigeminal nerve branches sensory ophthalmic v2 v1 v3 handout listed reference division eye divisions maxillary mandibular. See full list on deukspine I have my back nerves ting Symptoms associated with spinal cord compression include gait disturbances with balance difficulty, fine motor dysfunction in the hands, and motor weakness The neurologic symptoms suggestive of thoracic outlet syndrome that may be confused with cervical nerve root The Spinal Trigeminal tract is located. The mnemonics to remember the types of cranial nerves are: S = Sensory The motor nucleus is a paired structure located within the mid-to-upper pons ().It lies anteromedial to the main sensory nucleus and adjacent to the lateral aspect of the floor of the fourth ventricle.. Innervation. Search: C4 Nerve Root Compression Symptoms. They are the ophthalmic (V 1, sensory), maxillary (V 2, sensory) and mandibular (V 3, motor and sensory) branches. Select the mandibular branch of the trigeminal nerve and read its description: a. This branch is sensory/motor/ mixed (circle one). These sensory fibers originate from receptors associated with which regions? Schematic of the trigeminal nerve and the TSNC. As such, articles are written and edited by countless contributing members over a period of time. The trigeminal (gasserian) ganglion , near the apex of the petrous temporal bone, gives rise to the sensory root and consists of unipolar neurons. The trigeminal nerve is the fifth (CN V) cranial nerve and its primary role is relaying sensory information from the face and head, although it does provide motor control to the muscles of mastication via the mandibular division ( TA: nervus trigeminus or nervus cranialis V). It is often associated with dental caries in the human. The mesencephalic nucleus is one of four trigeminal nerve nuclei, three sensory and one motor. It exits the brainstem out from the sides of the upper medulla, just anterior (closer to the nose) to the vagus nerve. Facial Nerves | ClipArt ETC

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