Information about Nasociliary Nerve
| Nerve: | ||
|---|---|---|
| Nerves of the orbit, and the ciliary ganglion. Side view. (Nasociliary is at center.) | ||
| Nerves of septum of nose. Right side. (Nasociliary is rightmost yellow line.) | ||
| Latin | n. nasociliaris | |
| subject #200 888 | ||
| From | Ophthalmic nerve | |
| To | long root of the ciliary ganglion, the long ciliary nerves, the infratrochlear nerve, and the ethmoidal nerves | |
Path
The nasociliary nerve enters the orbit between the two heads of the lateral rectus muscles and between the superior and inferior rami of the oculomotor nerve (CN III). It passes across the optic nerve (CN II) and runs obliquely beneath the superior rectus muscle and superior oblique muscle to the medial wall of the orbital cavity. After giving the anterior ethmoidal nerve, it terminates as the infratrochlear nerve on the medial margin of the orbit.Tests
Since the long ciliary nerves carry the afferent limb of the corneal blink reflex, one can test the integrity of the nasociliary nerve (and, ultimately, the trigeminal nerve) by examining this reflex in the patient. Normally both eyes should blink when either conjuntiva is irritated. If neither eye blinks, then either the ipsilateral nasociliary nerve is damaged, or the facial nerve (CN VII, which carries the efferent limb of this reflex) is bilaterally damaged. If only the contralateral eye blinks, then the ipsilateral facial nerve is damaged. If only the ipsilateral eye blinks, then the contralateral facial nerve is damaged.Branches
The nasociliary nerve gives off the following branches:- posterior ethmoidal nerve
- long ciliary nerves
- infratrochlear nerve
- communicating branch to the ciliary ganglion (long root of the ciliary ganglion)
- anterior ethmoidal nerve
Additional images
) Base of the skull. Upper surface. | ) Plan of oculomotor nerve. | Nerves of the orbit. Seen from above. | Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. |
The sphenopalatine ganglion and its branches. | Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure. | ) Pathways in the Ciliary Ganglion. |
External links
- SUNY Figs 29:03-08 - "A deeper dissection of the right orbit from a superior approach."
- Norman/Georgetown lesson9 (nasalseptumner)
- Norman/Georgetown cranialnerves (V)
- MedEd at Loyola GrossAnatomy/h_n/cn/cn1/cnb1.htm
The cranial nerves: trigeminal nerve | |
|---|---|
| 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/infraorbital nerve (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 (greater palatine, lesser palatine, nasopalatine, pharyngeal) |
| V3 - mandibular | meningeal • medial pterygoid • anterior (masseteric, deep temporal, buccal, lateral pterygoid) posterior (auriculotemporal, lingual, inferior alveolar, mylohyoid, mental) • otic ganglion • submandibular ganglion |
The ciliary ganglion is a parasympathetic ganglion located in the posterior orbit. It measures 1- 2 millimeters in diameter and contains approximately 2,500 neurons[1]. Preganglionic axons from the Edinger-Westphal nucleus form synapses with these cells.
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Latin}}}
Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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The ophthalmic nerve is one of the three branches of the trigeminal nerve, the fifth cranial nerve. Like the maxillary branch of the trigeminal nerve, the ophthalmic branch carries sensory fibers only.
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The long root of the ciliary ganglion usually arises from the nasociliary between the two heads of the lateral rectus muscle. It is also called the nasociliary nerve's communicating branch to the ciliary ganglion.
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The long ciliary nerves, two or three in number, are given off from the nasociliary, as it crosses the optic nerve.
They accompany the short ciliary nerves from the ciliary ganglion, pierce the posterior part of the sclera, and running forward between it and the choroid,
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They accompany the short ciliary nerves from the ciliary ganglion, pierce the posterior part of the sclera, and running forward between it and the choroid,
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The infratrochlear nerve is given off from the nasociliary just before it enters the anterior ethmoidal foramen.
It runs forward along the upper border of the medial rectus, and is joined, near the pulley of the superior oblique, by a filament from the supratrochlear nerve.
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It runs forward along the upper border of the medial rectus, and is joined, near the pulley of the superior oblique, by a filament from the supratrochlear nerve.
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The ethmoidal nerves, which arise from the nasociliary nerve, supply the ethmoidal cells; the posterior branch leaves the orbital cavity through the posterior ethmoidal foramen and gives some filaments to the sphenoidal sinus.
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The ophthalmic nerve is one of the three branches of the trigeminal nerve, the fifth cranial nerve. Like the maxillary branch of the trigeminal nerve, the ophthalmic branch carries sensory fibers only.
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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.
It enters the orbit through the superior orbital fissure, and runs forward between the Levator palpebræ superioris and the
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It enters the orbit through the superior orbital fissure, and runs forward between the Levator palpebræ superioris and the
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The lacrimal nerve is the smallest of the three branches of the ophthalmic.
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.
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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.
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lateral rectus muscle is a muscle in the orbit. It is one of six extraocular muscles that control the movements of the eye (abduction in this case) and the only muscle innervated by the abducens nerve, cranial nerve VI.
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The oculomotor nerve is the third of twelve paired cranial nerves. It controls most of the eye movements (cranial nerves IV and VI also do some), constriction of the pupil, and holding the eyelid open.
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Optic Nerve may be a reference to:
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- Optic nerve, the anatomical structure;
- Optic Nerve (comic), the comic book series;
- Optic Nerve (1998), the seminal release from the Irish hip hop act known as Exile Eye; or
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The superior rectus muscle is a muscle in the orbit. It is one of the extraocular muscles.
It is innervated by the superior division of the oculomotor nerve (Cranial Nerve III).
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It is innervated by the superior division of the oculomotor nerve (Cranial Nerve III).
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For the abdominal muscle see: External oblique muscle
The superior oblique muscle, or obliquus oculi superior, is a fusiform muscle in the upper, medial side of the orbit whose primary action is intorsion and whose secondary actions are to abduct (laterally
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The superior oblique muscle, or obliquus oculi superior, is a fusiform muscle in the upper, medial side of the orbit whose primary action is intorsion and whose secondary actions are to abduct (laterally
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In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated.
It can also mean the skin which surrounds the eye of a bird.
In the adult human, the volume of the orbit is 30 ml, of which the eye occupies 6.5 ml.
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It can also mean the skin which surrounds the eye of a bird.
In the adult human, the volume of the orbit is 30 ml, of which the eye occupies 6.5 ml.
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The anterior ethmoidal nerve is a nerve which provides sensory branches to the nasal cavity.[1]
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See also
- anterior ethmoidal artery
- ethmoidal foramina
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The infratrochlear nerve is given off from the nasociliary just before it enters the anterior ethmoidal foramen.
It runs forward along the upper border of the medial rectus, and is joined, near the pulley of the superior oblique, by a filament from the supratrochlear nerve.
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It runs forward along the upper border of the medial rectus, and is joined, near the pulley of the superior oblique, by a filament from the supratrochlear nerve.
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Corneal reflex, also known as the blink reflex, is an automated involuntary blinking of the eyelids elicited by stimulation (such as touching or a foreign body) of the eyeball's cornea. Stimulation should elicit both a direct and consensual response.
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The trigeminal nerve (the fifth cranial nerve, also called the fifth nerve or simply V) is responsible for sensation in the face. It is similar to the spinal nerves C2–S5, which are responsible for sensation in the rest of the body.
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The facial nerve is the seventh (VII) of twelve paired cranial nerves. It emerges from the brainstem between the pons and the medulla, and controls the muscles of facial expression, and taste to the anterior two-thirds of the tongue.
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The posterior ethmoidal nerve is a branch of the nasociliary nerve.
It passes through the posterior ethmoidal foramen, with the posterior ethmoidal artery.
It carries sensory information from the sphenoid sinus and posterior ethmoidal air cells.
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It passes through the posterior ethmoidal foramen, with the posterior ethmoidal artery.
It carries sensory information from the sphenoid sinus and posterior ethmoidal air cells.
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The long ciliary nerves, two or three in number, are given off from the nasociliary, as it crosses the optic nerve.
They accompany the short ciliary nerves from the ciliary ganglion, pierce the posterior part of the sclera, and running forward between it and the choroid,
..... Click the link for more information.
They accompany the short ciliary nerves from the ciliary ganglion, pierce the posterior part of the sclera, and running forward between it and the choroid,
..... Click the link for more information.
The infratrochlear nerve is given off from the nasociliary just before it enters the anterior ethmoidal foramen.
It runs forward along the upper border of the medial rectus, and is joined, near the pulley of the superior oblique, by a filament from the supratrochlear nerve.
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It runs forward along the upper border of the medial rectus, and is joined, near the pulley of the superior oblique, by a filament from the supratrochlear nerve.
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The long root of the ciliary ganglion usually arises from the nasociliary between the two heads of the lateral rectus muscle. It is also called the nasociliary nerve's communicating branch to the ciliary ganglion.
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The anterior ethmoidal nerve is a nerve which provides sensory branches to the nasal cavity.[1]
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See also
- anterior ethmoidal artery
- ethmoidal foramina
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The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind in the Borough of Brooklyn in New York City.
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Georgetown University is a private, Jesuit, research university, located in Washington, D.C.'s Georgetown neighborhood. Father John Carroll founded the school in 1789, though its roots extend back to 1634.
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Georgetown University is a private, Jesuit, research university, located in Washington, D.C.'s Georgetown neighborhood. Father John Carroll founded the school in 1789, though its roots extend back to 1634.
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Loyola University Chicago is a private co-educational religious-affiliated university established in Chicago in 1870 as Saint Ignatius College. It was founded by the Roman Catholic religious order of the Society of Jesus and bears the name of the Jesuit patron, Saint Ignatius of
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