I-IV: olfactory - optic - oculomotor - trochlear Nerves (yellow) Nerves redirects here. ... Head and neck anatomy is a specialized study of the human body quite frequently studied in depth by surgeons, dentist, and dental technicians. ... It has been suggested that this article or section be merged with Cranial nerve nucleus. ... The olfactory nerve is the first of twelve cranial nerves. ... MRI scan of human eye showing optic nerve. ... The oculomotor nerve () is the third of twelve paired cranial nerves. ... The fourth of twelve cranial nerves, the trochlear nerve controls the function of the superior oblique muscle, which rotates the eye away from the nose and also moves the eye downward. ...

V: trigeminal: trigeminal ganglion
V1: ophthalmic: lacrimal - frontal (supratrochlear, supraorbital) - nasociliary (long root of ciliary, long ciliary, infratrochlear, posterior ethmoidal, anterior ethmoidal) - ciliary ganglion (short ciliary)
V2: maxillary: middle meningeal - in the pterygopalatine fossa (zygomatic, zygomaticotemporal, zygomaticofacial, sphenopalatine, posterior superior alveolar)
in the infraorbital canal (middle superior alveolar, anterior superior alveolar)
on the face (inferior palpebral, external nasal, superior labial, infraorbital plexus) - pterygopalatine ganglion (deep petrosal, nerve of pterygoid canal)
branches of distribution (palatine, nasopalatine, pharyngeal)
V3: mandibular: nervus spinosus - medial pterygoid - anterior (masseteric, deep temporal, buccal, lateral pterygoid)
posterior (auriculotemporal, lingual, inferior alveolar, mylohyoid, mental) - otic ganglion - submandibular ganglion The trigeminal nerve is the fifth (V) cranial nerve, and carries sensory information from most of the face, as well as motor supply to the muscles of mastication (the muscles enabling chewing), tensor tympani (in the middle ear), and other muscles in the floor of the mouth, such as the... The Ophthalmic nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ... The Lacrimal Nerve is the smallest of the three branches of the ophthalmic. ... The Frontal Nerve is the largest branch of the ophthalmic, and may be regarded, both from its size and direction, as the continuation of the nerve. ... The supratrochlear nerve, smaller than the Supraorbital nerve, passes above the pulley of the Obliquus superior, and gives off a descending filament, to join the infratrochlear branch of the nasociliary nerve. ... The supraorbital nerve arises from the orbit by the supraorbital foramen and supplies the upper eyelid and forehead integuments. ... The Ophthalmic nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ... The long root of the ciliary ganglion usually arises from the nasociliary between the two heads of the Rectus lateralis. ... The long ciliary nerves, two or three in number, are given off from the nasociliary, as it crosses the optic nerve. ... The infratrochlear nerve is given off from the nasociliary just before it enters the anterior ethmoidal foramen. ... The posterior ethmoidal nerve is a branch of the nasociliary nerve. ... The anterior ethmoidal nerve is a nerve which provides sensory branches to the nasal cavity. ... The ciliary ganglion is small parasympathetic ganglion lying in the orbit between the optic nerve and the lateral rectus muscle that is associated with the nasociliary nerve (a branch of the ophthalmic division of the trigeminal nerve). ... The branches of the ciliary ganglion are the short ciliary nerves. ... The Maxillary nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ... The Middle Meningeal Nerve (meningeal or dural branch) is given off from the maxillary nerve directly after its origin from the semilunar ganglion; it accompanies the middle meningeal artery and supplies the dura mater. ... In the skull, the pterygopalatine fossa is the space between the lateral pterygoid plate (which is part of the sphenoid bone), and the palate. ... The Zygomatic Nerve (temporomalar nerve; orbital nerve) arises in the pterygopalatine fossa, enters the orbit by the inferior orbital fissure, and divides at the back of that cavity into two branches, zygomaticotemporal and zygomaticofacial. ... The zygomaticotemporal nerve or zygomaticotemporal branch (temporal branch), from the maxillary branch of the trigeminal nerve (Cranial nerve 5), runs along the lateral wall of the orbit in a groove in the zygomatic bone, receives a branch of communication from the lacrimal, and, passing through a foramen in the zygomatic... The zygomaticofacial nerve or zygomaticofacial branch of zygomatic nerve (malar branch) passes along the infero-lateral angle of the orbit, emerges upon the face through a foramen in the zygomatic bone, and, perforating the Orbicularis oculi, supplies the skin on the prominence of the cheek. ... The Sphenopalatine Branches, two in number, descend to the sphenopalatine ganglion. ... The Posterior Superior Alveolar Branches (posterior superior dental branches) arise from the trunk of the maxillary nerve just before it enters the infraorbital groove; they are generally two in number, but sometimes arise by a single trunk. ... One of the canals of the orbital surface of the maxilla, the infraorbital canal, opens just below the margin of the orbit. ... The middle superior alveolar nerve is a nerve that drops from the infraorbital portion of the maxillary nerve to supply the sinus mucosa, the roots of the maxillary premolars, and the mesiobuccal root of the first molar. ... The Anterior Superior Alveolar Branch (anterior superior dental branch), of considerable size, is given off from the nerve just before its exit from the infraorbital foramen; it descends in a canal in the anterior wall of the maxillary sinus, and divides into branches which supply the incisor and canine teeth. ... The Inferior Palpebral Branches (palpebral branches) ascend behind the Orbicularis oculi. ... The external nasal branches (or external nasal nerve) supply the skin of the side of the nose and of the septum mobile nasi, and join with the terminal twigs of the nasociliary nerve. ... The Superior Labial Branches (labial branches), the largest and most numerous, descend behind the Quadratus labii superioris, and are distributed to the skin of the upper lip, the mucous membrane of the mouth, and labial glands. ... The superior labial branches descend behind the Quadratus labii superioris, and are distributed to the skin of the upper lip, the mucous membrane of the mouth, and labial glands. ... The sphenopalatine ganglion is a parasympathetic ganglion found in the spheno-maxillary fossa. ... The deep petrosal nerve (large deep petrosal nerve) is given off from the carotid plexus, and runs through the carotid canal lateral to the internal carotid artery. ... The nerve of the pterygoid canal (Vidian nerve), formed by the junction of the great petrosal nerve and the deep petrosal nerve in the cartilaginous substance which fills the foramen lacerum, passes forward, through the pterygoid canal, with the corresponding artery, and is joined by a small ascending sphenoidal branch... The palatine nerves (descending branches) are distributed to the roof of the mouth, soft palate, tonsil, and lining membrane of the nasal cavity. ... One branch of the posterior superior nasal branches, longer and larger than the others, is named the nasopalatine nerve. ... The pharyngeal nerve (pterygopalatine nerve) is a small branch arising from the posterior part of the pterygopalatine ganglion. ... The mandibular nerve is the third branch (V3) of the trigeminal nerve. ... The Nervus Spinosus (recurrent or meningeal branch of the mandibular nerve) enters the skull through the foramen spinosum with the middle meningeal artery. ... The medial pterygoid nerve (or internal pterygoid nerve) is a branch off the mandibular nerve that innervates the medial pterygoid muscle. ... The Masseteric Nerve passes lateralward, above the Pterygoideus externus, in front of the temporomandibular articulation, and behind the tendon of the Temporalis; it crosses the mandibular notch with the masseteric artery, to the deep surface of the Masseter, in which it ramifies nearly as far as its anterior border. ... The Deep Temporal Nerves are two in number, anterior and posterior. ... A branch of the mandibular nerve (which is itself a branch of the trigeminal nerve), the buccal nerve transmits sensory information from skin over the buccal membrane (in general, the cheek) and from the second and third molar teeth. ... External Pterygoid Nerve (or lateral pterygoid nerve): The nerve to the Pterygoideus externus frequently arises in conjunction with the buccinator nerve, but it may be given off separately from the anterior division of the mandibular nerve. ... The auriculotemporal nerve is a branch of the mandibular nerve that runs with the superficial temporal artery and vein, and provides sensory innervation to various regions on the side of the head. ... The Lingual Nerve is a branch of the mandibular nerve from the fifth cranial nerve, the trigeminal nerve (CN V3), that supplies the mucous membrane of the anterior two-thirds of the tongue. ... The inferior alveolar nerve is a branch of the mandibular nerve, which is itself the third branch (V3) of the fifth cranial nerve, the trigeminal nerve (cranial nerve V). ... The mylohyoid nerve is derived from the inferior alveolar just before it enters the mandibular foramen. ... The mental nerve emerges at the mental foramen, and divides beneath the Triangularis muscle into three branches: one descends to the skin of the chin. ... The Otic Ganglion is a parasympathetic ganglion located immediately below the foramen ovale. ... The submandibular ganglion (or submaxillary ganglion in older texts) is of small size and is fusiform in shape. ...

VI: abducens The sixth of twelve cranial nerves, the abducens nerve is a motor nerve that innervates the lateral rectus muscle and therefore controls each eyes ability to abduct (move away from the midline). ...

VII: facial: nervus intermedius - geniculate - inside facial canal (greater petrosal, nerve to the stapedius, chorda tympani)
at exit from stylomastoid foramen (posterior auricular, digastric - stylohyoid)
on face (temporal, zygomatic, buccal, mandibular, cervical) The facial nerve is seventh of twelve paired cranial nerves. ... The nervus intermedius, or intermediate nerve, is the part of the facial nerve (cranial nerve VII) located between the motor component of the facial nerve and the vestibulocochlear nerve (cranial nerve VIII). ... Mark Hartley: 01946841665 i am gay and call me for bum sex. ... The greater petrosal nerve is a nerve in the skull that branches from the facial nerve; it forms part of a chain of nerves that innervates the lacrimal gland. ... The Nerve to the Stapedius (tympanic branch) arises opposite the pyramidal eminence; it passes through a small canal in this eminence to reach the muscle. ... The chorda tympani are nerves of special sensation given off the facial nerve (VII) inside the skull. ... The Posterior Auricular Nerve arises close to the stylo-mastoid foramen, and runs upward in front of the mastoid process; here it is joined by a filament from the auricular branch of the vagus, and communicates with the posterior branch of the great auricular, and with the lesser occipital. ... The digastric branch of facial nerve arises close to the stylomastoid foramen, and divides into several filaments, which supply the posterior belly of the Digastricus; one of these filaments joins the glossopharyngeal nerve. ... The stylohyoid branch of facial nerve frequently arises in conjunction with the digastric branch; it is long and slender, and enters the Stylohyoideus about its middle. ... The Temporal branches of the facial nerve cross the zygomatic arch to the temporal region, supplying the Auriculares anterior and superior, and joining with the zygomaticotemporal branch of the maxillary, and with the auriculotemporal branch of the mandibular. ... The Zygomatic branches of the facial nerve (malar branches) run across the zygomatic bone to the lateral angle of the orbit, where they supply the Orbicularis oculi, and join with filaments from the lacrimal nerve and the zygomaticofacial branch of the maxillary nerve. ... The Buccal Branches of the facial nerve (infraorbital branches), of larger size than the rest of the branches, pass horizontally forward to be distributed below the orbit and around the mouth. ... The Marginal mandibular branch of facial nerve passes forward beneath the Platysma and Triangularis, supplying the muscles of the lower lip and chin, and communicating with the mental branch of the inferior alveolar nerve. ... The cervical branch of the facial nerve runs forward beneath the Platysma, and forms a series of arches across the side of the neck over the suprahyoid region. ...

VIII: vestibulocochlear: cochlear (striae medullares, lateral lemniscus) - vestibular The vestibulocochlear nerve is the eighth of twelve cranial nerves and also known as the auditory nerve. ... The Cochlear nerve (n. ... Winding around the inferior peduncle and crossing the area acustica and the medial eminence are a number of white strands, the striae medullares, which form a portion of the cochlear division of the acoustic nerve and disappear into the median sulcus. ... The lateral lemniscus is a tract of axons in the brainstem that carries information about sound to the inferior colliculus of the midbrain. ... The Vestibular nerve is one of the two branches of the Vestibulocochlear nerve (the cochlear nerve is the other. ...

IX: glossopharyngeal: fasciculus solitarius - nucleus ambiguus - ganglia (superior, petrous) - tympanic - carotid sinus The glossopharyngeal nerve is the ninth of twelve cranial nerves. ... The longitudinal fibers in the reticularis grisea of the reticular formation form indeterminate fibers, with the exception of a bundle named the fasciculus solitarius (solitary tract), which is made up of descending fibers of the vagus and glossopharyngeal nerves. ... The nucleus ambiguus (literally ambiguous nucleus) is a region of histologically disparate cells located just dorsal (posterior) to the inferior olivary nucleus in the lateral portion of the upper (rostral) medulla. ... The superior ganglion (jugular ganglion) is situated in the upper part of the groove in which the glossopharyngeal nerve is lodged during its passage through the jugular foramen. ... The inferior ganglion of the glossopharyngeal nerve (petrous ganglion) is larger than the superior ganglion and is situated in a depression in the lower border of the petrous portion of the temporal bone. ... The Tympanic Nerve (nerve of Jacobson) arises from the petrous ganglion, and ascends to the tympanic cavity through a small canal on the under surface of the petrous portion of the temporal bone on the ridge which separates the carotid canal from the jugular fossa. ... The branch of the glossopharyngeal nerve to the carotid sinus is the nerve which primarily receives information from baroreceptors to help maintain a more consistent blood pressure. ...

X: vagus: ganglia (jugular, nodose) - Alderman's nerve - in the neck (pharyngeal branch, superior laryngeal ext and int, recurrent laryngeal)
in the thorax (pulmonary branches, esophageal plexus) - in the abdomen (gastric plexuses, celiac plexus, gastric plexus) The vagus nerve (also called pneumogastric nerve or cranial nerve X) is the tenth of twelve paired cranial nerves, and is the only nerve that starts in the brainstem (within the medulla oblongata) and extends, through the jugular foramen, down below the head, to the abdomen. ... The vagus presents a well-marked ganglionic enlargement, which is called the superior ganglion of the vagus nerve (jugular ganglion, ganglion of the root); to it the accessory nerve is connected by one or two filaments. ... The nodose ganglion (ganglion of the trunk; inferior ganglion of vagus nerve) is cylindrical in form, of a reddish color, and 2. ... The Auricular branch of the tenth cranial or vagus nerve is often termed the Aldermans nerve. ... The pharyngeal branch of the vagus nerve, the principal motor nerve of the pharynx, arises from the upper part of the ganglion nodosum, and consists principally of filaments from the cranial portion of the accessory nerve. ... The Superior Laryngeal Nerve arises from the middle of the ganglion nodosum and in its course receives a branch from the superior cervical ganglion of the sympathetic. ... The external laryngeal nerve is the smaller, external branch (ramus externus) of the superior laryngeal nerve. ... The internal laryngeal nerve is the internal branch (ramus internus) of the superior laryngeal nerve. ... The recurrent laryngeal nerve is a branch of the vagus nerve (the tenth cranial nerve) that supplies motor function and sensation to the larynx (voice box). ... The pulmonary branches of the vagus nerve can be divided into two groups: anterior and posterior. ... The esophageal branches of the vagus nerve are given off both above and below the bronchial branches; the lower are numerous and larger than the upper. ... The superior gastric plexus (gastric or coronary plexus) accompanies the left gastric artery along the lesser curvature of the stomach, and joins with branches from the left vagus. ... The solar plexus, also known as the celiac plexus or plexus cœliacus, is an autonomous cluster of nerve cells (see Plexus) in the human body behind the stomach and below the diaphragm near the celiac artery in the abdominal cavity. ... The superior gastric plexus (gastric or coronary plexus) accompanies the left gastric artery along the lesser curvature of the stomach, and joins with branches from the left vagus. ...

XI: accessory XII: hypoglossal The accessory nerve is the eleventh of twelve cranial nerves. ... The hypoglossal nerve is the twelfth cranial nerve. ...