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Encyclopedia > Lacrimal nerve
Nerve: Lacrimal nerve
Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure.
Nerves of the orbit, and the ciliary ganglion. Side view.
Latin Nervus lacrimalis
Gray's subject #200 887
Innervates
From Ophthalmic nerve
To
MeSH [1]

The Lacrimal Nerve is the smallest of the three branches of the ophthalmic. The superior orbital fissure is a foramen in the skull, although strictly it is more of a cleft, lying between the lesser and greater wings of the sphenoid bone. ... In physics, an orbit is the path that an object makes, around another object, whilst under the influence of a source of centripetal force, such as gravity. ... 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). ... Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ... The Ophthalmic nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... The Ophthalmic nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ...


It sometimes receives a filament from the trochlear nerve, but this is possibly derived from the branch which goes from the ophthalmic to the trochlear nerve. The fourth of twelve cranial nerves, the trochlear nerve controls the function of the superior oblique muscle, which rotates the eye towards the nose and also moves the eye downward. ... The fourth of twelve cranial nerves, the trochlear nerve controls the function of the superior oblique muscle, which rotates the eye towards the nose and also moves the eye downward. ...


It passes forward in a separate tube of dura mater, and enters the orbit through the narrowest part of the superior orbital fissure. The dura mater (from the Latin hard mother), or pachymeninx, is the tough and inflexible outermost of the three layers of the meninges surrounding the brain. ... The superior orbital fissure is a foramen in the skull, although strictly it is more of a cleft, lying between the lesser and greater wings of the sphenoid bone. ...


In the orbit it runs along the upper border of the Rectus lateralis, with the lacrimal artery, and communicates with the zygomatic branch of the maxillary nerve. Figure 1 : Left zygomatic bone The zygomatic bone (also known as the zygoma; Os Zygomaticum; Malar Bone) is a paired bone of the human skull. ... The Maxillary nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ...


It enters the lacrimal gland and gives off several filaments, which supply the gland and the conjunctiva. Lacrimal apparatus of the right eye. ... The conjunctiva is a membrane that covers the sclera (white part of the eye) and lines the inside of the eyelids. ...


Finally it pierces the orbital septum, and ends in the skin of the upper eyelid, joining with filaments of the facial nerve. An eyelid is a thin fold of skin and muscle that covers and protects an eye. ... Grays Fig. ...


The lacrimal nerve is occasionally absent, and its place is then taken by the zygomaticotemporal branch of the maxillary. Sometimes the latter branch is absent, and a continuation of the lacrimal is substituted for it. The maxillary sinus is the largest paranasal sinus. ... The lacrimal bone (Os Lacrimale), the smallest and most fragile bone of the face, is situated at the front part of the medial wall of the orbit. ...


External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. SUNY Downstate Medical Center is Brooklyns only academic medical center. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...

Major nerves (also see Peripheral nervous system)

Cranial nerves: I olfactory | II optic | III oculomotor | IV trochlear | V trigeminal | V1 ophthalmic (lacrimal, frontal, supratrochlear, supraorbital, nasociliary, ciliary ganglion) | V2 maxillary (sphenopalatine ganglion) | V3 mandibular (buccal - auriculotemporal - lingual - inferior alveolar - otic ganglion) | VI abducens | VII facial (chorda tympani, nervus intermedius) | VIII vestibulocochlear (cochlear, vestibular) | IX glossopharyngeal | X vagus (recurrent laryngeal, Alderman's nerve) | XI accessory | XII hypoglossal Nerves (yellow)    Nerves redirects here. ... The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system--to serve the limbs and organs, for example. ... Cranial nerves are nerves that emerge from the brainstem instead of the spinal cord. ... The olfactory nerve is the first of twelve cranial nerves. ... The optic nerve is the nerve that transmits visual information from the retina to the brain. ... 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 towards the nose and also moves the eye downward. ... 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 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 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 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 Maxillary nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ... The sphenopalatine ganglion is a parasympathetic ganglion found in the spheno-maxillary fossa. ... The mandibular nerve is the third branch (V3) of the trigeminal nerve. ... 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. ... The auriculotemporal nerve is a branch of the mandibular nerve (Viii) and supplies motor fibres to the temporomandibular joint and parasympathetic fibres to the parotid glands. ... The Lingual Nerve 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 Otic Ganglion is a parasympathetic ganglion located immediately below the foramen ovale. ... The sixth out of twelve cranial nerves, the abducens nerve controls the lateral rectus muscle - this means that the action of this nerve controls each eyes ability to look laterally (away from the midline). ... Grays Fig. ... The chorda tympani are nerves of special sensation given off the facial nerve (VII) inside the skull. ... 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). ... The vestibulocochlear nerve is the eighth of twelve cranial nerves and also known as the auditory nerve. ... The Cochlear nerve (n. ... The Vestibular nerve is one of the two branches of the Vestibulocochlear nerve (the cochlear nerve is the other. ... The glossopharyngeal nerve is the ninth of twelve cranial nerves. ... The vagus nerve is tenth of twelve paired cranial nerves and is the only nerve that starts in the brainstem (somewhere in the medulla oblongata) and extends all the way down past the head, right down to the abdomen. ... The recurrent laryngeal nerve is a branch of the vagus nerve (the tenth cranial nerve) which supplies motor function and sensation to the larynx (voice box). ... The Auricular branch of the tenth cranial or vagus nerve is often termed the Aldermans nerve. ... The accessory nerve is the eleventh of twelve cranial nerves. ... The hypoglossal nerve is the twelfth cranial nerve. ...


Posterior spinal nerves: greater occipital The term spinal nerve generally refers to the mixed spinal nerve, which is formed from the dorsal and ventral roots that come out of the spinal cord. ... The greater occipital nerve is a spinal nerve arising between the first and second cervical vertebrae, along with the lesser occipital nerve. ...


C1-C4 - Cervical plexus: lesser occipital | greater auricular | lesser auricular | phrenic | ansa cervicalis The cervical plexus is a plexus of the ventral roots of the first four cervical spinal nerves which are located from C1 to C4 cervical segment near the neck. ... The lesser occipital nerve is a spinal nerve arising between the first and second cervical vertebrae, along with the greater occipital nerve. ... The greater auricular nerve originates from the cervical plexus, composed of branches of spinal nerves C2 and C3. ... The lesser auricular nerve originates from the cervical plexus, composed of branches of spinal nerves C2 and C3. ... The phrenic nerve arises from spinal nerves C3, C4 and C5. ... The ansa cervicalis (or ansa hypoglossi in older literature) is a loop of nerves that are part of the cervical plexus. ...


C5-C8, T1 - Brachial plexus: supraclavicular branches (dorsal scapular, suprascapular, long thoracic) | lateral cord (musculocutaneous, lateral antibrachial cutaneous, lateral head of median nerve) | medial cord (ulnar, medial head of median nerve, medial antibrachial cutaneous, medial brachial cutaneous) | posterior cord (axillary, radial) The brachial plexus is an arrangement of nerve fibres (a plexus) running from the spine (vertebrae C5-T1), through the neck, the axilla (armpit region), and into the arm. ... The dorsal scapular nerve arises from the brachial plexus, specifically from spinal nerves C4 and C5. ... The Nervus suprascapularis (Suprascapular nerve) is a nerve of the plexus brachialis. ... The long thoracic nerve supplies motor innervation to the serratus anterior muscle. ... The Lateral cord is a division of the brachial plexus. ... The major end branch of the lateral cord, courses inferiorly within the anterior arm, supplying motor fibers to the arm muscles that flex the forearm (the biceps brachii and brachialis). ... The lateral antibrachial cutaneous nerve (branch of musculocutaneous nerve, also sometimes spelled antebrachial) passes behind the cephalic vein, and divides, opposite the elbow-joint, into a volar and a dorsal branch. ... Diagram from Grays anatomy, depicting the peripheral nerves of the upper extremity, amongst others the median nerve The median nerve is a nerve that runs down the arm and forearm. ... The Medial cord is a division of the brachial plexus. ... Grays Fig. ... Diagram from Grays anatomy, depicting the peripheral nerves of the upper extremity, amongst others the median nerve The median nerve is a nerve that runs down the arm and forearm. ... The Medial Antibrachial Cutaneous Nerve (internal cutaneous nerve, also sometimes spelled antebrachial) arises from the medial cord of the brachial plexus. ... The Medial Brachial Cutaneous Nerve (lesser internal cutaneous nerve; nerve of Wrisberg) is distributed to the skin on the ulnar side of the arm. ... The Posterior cord is a division of the brachial plexus. ... The axillary nerve is a nerve of the human body, that comes off the posterior cord of the brachial plexus at the level of the axilla (armpit) and carriers nerve fibers from C5 and C6. ... The radial nerve is a nerve in the human body, that supplies the arm, the forearm and the hand. ...


T2-T11: intercostal The thoracic spinal nerves T3 through T12. ...


T12, L1-L5 - Lumbar plexus: iliohypogastric | ilioinguinal | genitofemoral | lateral femoral cutaneous | femoral | obturator Grays Fig. ... The Iliohypogastric Nerve arises from the first lumbar nerve. ... The Ilioinguinal Nerve, smaller than the Iliohypogastric nerve, arises with it from the first lumbar nerve. ... In human anatomy, the genitofemoral nerve originates from the upper part of the lumbar plexus of spinal nerves. ... The Lateral Femoral Cutaneous Nerve (external cutaneous nerve) arises from the dorsal divisions of the second and third lumbar nerves. ... The femoral nerve supplies innervation to the anterior portion of the leg. ... The Obturator Nerve arises from the ventral divisions of the second, third, and fourth lumbar nerves; the branch from the third is the largest, while that from the second is often very small. ...


S1-S4 - Sacral plexus: gluteal | posterior femoral cutaneous | tibial | sciatic | sural | common peroneal In human anatomy, the Sacral plexus refers to the nerve plexus emerging from the sacral vertebrae (S1-S4), and which provides nerves for the pelvis and lower limbs. ... The Superior Gluteal Nerve () arises from the dorsal divisions of the fourth and fifth lumbar and first sacral nerves: it leaves the pelvis through the greater sciatic foramen above the Piriformis, accompanied by the superior gluteal vessels, and divides into a superior and an inferior branch. ... The Posterior Femoral Cutaneous Nerve (small sciatic nerve) is distributed to the skin of the perineum and posterior surface of the thigh and leg. ... The Tibial Nerve The tibial nerve passes through the popliteal fossa to pass below the arch of soleus. ... The sciatic nerve is a large nerve that runs down the lower limb. ... The sural nerve (short saphenous nerve), formed by the junction of the medial sural cutaneous with the peroneal anastomotic branch, passes downward near the lateral margin of the tendo calcaneus, lying close to the small saphenous vein, to the interval between the lateral malleolus and the calcaneus. ... The Common peroneal nerve is a branch of the Sciatic nerve. ...


S2-S5 - Pudendal plexus: perforating cutaneous | pudendal | visceral | muscular | anococcygeal The pudendal plexus is not sharply marked off from the sacral plexus, and as a consequence some of the branches which spring from it may arise in conjunction with those of the sacral plexus. ... The Perforating Cutaneous Nerve usually arises from the posterior surface of the second and third sacral nerves. ... The pudendal nerve is responsible for orgasm, urination, and defecation in both sexes. ... The Visceral Branches arise from the third and fourth, and sometimes from the second, sacral nerves, and are distributed to the bladder and rectum and, in the female, to the vagina; they communicate with the pelvic plexuses of the sympathetic. ... The Muscular Branches are derived from the fourth sacral, and supply the Levator ani, Coccygeus, and Sphincter ani externus. ... Anococcygeal Nerves: The fifth sacral nerve receives a communicating filament from the fourth, and unites with the coccygeal nerve to form the coccygeal plexus. ...


  Results from FactBites:
 
Ophthalmic nerve - Wikipedia, the free encyclopedia (356 words)
Nerves of the orbit, and the ciliary ganglion.
The ophthalmic nerve is one of the three branches of the trigeminal nerve, the fifth cranial nerve.
The ophthalmic nerve is joined by filaments from the cavernous plexus of the sympathetic, and communicates with the oculomotor, trochlear, and abducent nerves; it gives off a recurrent filament which passes between the layers of the tentorium.
IX. Neurology. 5e. The Trigeminal Nerve. Gray, Henry. 1918. Anatomy of the Human Body. (5634 words)
The ciliary ganglion is connected with the ophthalmic nerve; the sphenopalatine ganglion with the maxillary nerve; and the otic and submaxillary ganglia with the mandibular nerve.
It passes forward on the lateral side of the optic nerve, and enters the postero-superior angle of the ciliary ganglion; it is sometimes joined by a filament from the cavernous plexus of the sympathetic, or from the superior ramus of the trochlear nerve.
The branches of the inferior alveolar nerve are the mylohyoid, dental, incisive, and mental.
  More results at FactBites »

 
 

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