Information about Infratrochlear Nerve
| Nerve: | ||
|---|---|---|
) | ||
| Sensory areas of the head, showing the general distribution of the three divisions of the fifth nerve. (Infratrochlear nerve labeled at center left.) | ||
| Nerves of the orbit, and the ciliary ganglion. Side view. | ||
| Latin | nervus infratrochlearis | |
| subject #200 888 | ||
| From | Nasociliary nerve | |
| Dorlands/Elsevier | n_05/12565921 | |
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.
It then passes to the medial angle of the eye, and supplies the skin of the eyelids and side of the nose, the conjunctiva, lacrimal sac, and caruncle.
Etymology
Infratrochlear means "below the trochlea". The term trochlea means "pulley" in Latin. Specifically, the trochlea referred to is a loop inside the orbit of the eye (trochlea of superior oblique), through which the tendon of the superior oblique muscle passes.Additional images
Nerves of the orbit. Seen from above. |
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 As such, some of the information contained herein may be outdated.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.The cranial nerves: trigeminal nerve | |
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| 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 nasociliary nerve is a branch of the ophthalmic nerve. It is intermediate in size between the two other main branches of the ophthalmic nerve, the frontal nerve and the lacrimal nerve, and is more deeply placed.
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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The nasociliary nerve is a branch of the ophthalmic nerve. It is intermediate in size between the two other main branches of the ophthalmic nerve, the frontal nerve and the lacrimal nerve, and is more deeply placed.
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anterior ethmoidal foramen, situated about the middle of the lateral margin of the olfactory groove, transmits the anterior ethmoidal vessels and the nasociliary nerve; the nerve runs in a groove along the lateral edge of the cribriform plate to the slit-like opening above
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The medial rectus muscle is a muscle in the orbit.
As with most of the muscles of the orbit, it is innervated by the inferior division of the oculomotor nerve (Cranial Nerve III).
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As with most of the muscles of the orbit, it is innervated by the inferior 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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An eyelid is a thin fold of skin and muscle that covers and protects an eye. With the exception of the prepuce and the labia minora, it has the thinnest skin of the whole body. The levator palpebrae superioris muscle retracts the eyelid to "open" the eye.
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nose is a protuberance in vertebrates that houses the nostrils, or nares, which admit and expel air for respiration in conjunction with the mouth.
In most humans, it also houses the nosehairs, which catch airborne particles and prevent them from reaching the lungs.
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In most humans, it also houses the nosehairs, which catch airborne particles and prevent them from reaching the lungs.
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The conjunctiva is a membrane that covers the sclera (white part of the eye) and lines the inside of the eyelids.
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Function
It helps lubricate the eye by producing mucus and tears, although a smaller volume of tears than the lacrimal gland...... Click the link for more information.
The lacrimal sac, is the upper dilated end of the nasolacrimal duct, and is lodged in a deep groove formed by the lacrimal bone and frontal process of the maxilla.
It is oval in form and measures from 12 to 15 mm.
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It is oval in form and measures from 12 to 15 mm.
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Caruncle (Latin: caruncula "wart") may refer to:
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- In botany, an elaiosome (fleshy structure attached to the seed), especially in the plant family Euphorbiaceae
- In animal anatomy:
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Trochlea (Latin for pulley) is a term in anatomy. It refers to a grooved structure reminiscent of a pulley's wheel.
Most commonly, trochleae bear the articular surface of saddle and other joints:
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Most commonly, trochleae bear the articular surface of saddle and other joints:
- Trochlea of humerus
- Trochlear process of the Calcaneus
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The Trochlea of superior oblique is a pulley structure in the eye through which the superior oblique muscle passes.
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Additional images
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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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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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Public domain comprises the body of knowledge and innovation (especially creative works such as writing, art, music, and inventions) in relation to which no person or other legal entity can establish or maintain proprietary interests within a particular legal jurisdiction.
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Henry Gray's Anatomy of the Human Body (or Gray's Anatomy as it has commonly been shortened) is an English-language human anatomy textbook widely regarded as a classic work on the subject.
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Cranial nerves are nerves that emerge directly from the brain in contrast to spinal nerves which emerge from segments of the spinal cord. Although thirteen cranial nerves in humans fit this description, twelve are conventionally recognized.
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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 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 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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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 supraorbital nerve is a terminal branch of the frontal nerve.
It passes through the supraorbital foramen, and gives off, in this situation, palpebral filaments to the upper eyelid.
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It passes through the supraorbital foramen, and gives off, in this situation, palpebral filaments to the upper eyelid.
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The nasociliary nerve is a branch of the ophthalmic nerve. It is intermediate in size between the two other main branches of the ophthalmic nerve, the frontal nerve and the lacrimal nerve, and is more deeply placed.
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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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