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Information about Infraorbital Artery

Artery:
Plan of branches of internal maxillary artery. (Infraorbital at far right.)
Left orbicularis oculi, seen from behind. (Infraorbital labeled at lower left.)
Latina. infraorbitalis
subject #144 562
Sourcemaxillary artery
Branchesorbital branches
anterior superior alveolar arteries
Dorlands/Elsevier a_61/12154622
The infraorbital artery is an artery in the head that runs in the maxilla, emerging just under the orbit of the eye.

Course

The infraorbital artery appears, from its direction, to be the continuation of the trunk of the maxillary artery, but often arises in conjunction with the posterior superior alveolar artery.

It runs along the infraorbital groove and canal with the infraorbital nerve, and emerges on the face through the infraorbital foramen, beneath the infraorbital head of the levator labii superioris muscle.

Branches

While in the canal, it gives off On the face, some branches pass upward to the medial angle of the orbit and the lacrimal sac, anastomosing with the angular artery, a branch of the facial artery; others run toward the nose, anastomosing with the dorsal nasal branch of the ophthalmic artery; and others descend between the levator labii superioris and the levator anguli oris, and anastomose with the facial artery, transverse facial artery, and buccal artery.

The four remaining branches arise from that portion of the maxillary artery which is contained in the pterygopalatine fossa.

Additional images


Diagram showing the origins of the main branches of the carotid arteries.

Plan of branches of internal maxillary artery.

Bloodvessels of the eyelids, front view.


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 As such, some of the information contained herein may be outdated.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.

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Arteries of head and neck
CC, EC: Anteriorsuperior thyroid (superior laryngeal) - lingual (sublingual)
facial: cervical branches (ascending palatine - tonsillar - submental - glandular) - facial branches (inferior labial - superior labial - lateral nasal - angular)
EC: Posterior and ascendingoccipital - posterior auricular (stylomastoid) - ascending pharyngeal (meningeal branches)
EC: Terminal, superficial temporaltransverse facial - middle temporal (zygomaticorbital) - anterior auricular - frontal - parietal
EC: Terminal, maxillary1st part: anterior tympanic - deep auricular - middle meningeal (superior tympanic) - accessory meningeal - inferior alveolar (mylohyoid)
2nd part: deep temporal - pterygoid branches - masseteric - buccal
3rd part: posterior superior alveolar - infraorbital (anterior superior alveolar) - descending palatine - artery of the pterygoid canal - sphenopalatine
CC, IC: portions #1 and 2cervical portion - petrous portion (Vidian, caroticotympanic)
IC: cavernous portion/ophthalmicorbital group: lacrimal - supraorbital - posterior ethmoidal - anterior ethmoidal - medial palpebral - supratrochlear - dorsal nasal
ocular group: central retinal - ciliary (short posterior, long posterior, anterior) - superior hypophysial - inferior hypophyseal
IC: cerebral portionACA - anterior communicating - MCA (anterolateral central) - posterior communicating - anterior choroidal - circle of Willis
SUBCLAVIAN: vertebralmeningeal branches - posterior spinal - anterior spinal - PICA - basilar (pontine - labyrinthine - AICA - SCA - PCA)
SUBCLAVIAN: thyrocervicalinferior thyroid (inferior laryngeal, tracheal, esophageal, ascending cervical) - suprascapular - transverse cervical - dorsal scapular
The maxillary artery (or internal maxillary artery in older texts) is an artery that supplies deep structures of the face.

Structure



The maxillary artery, the larger of the two terminal branches of the external carotid artery, arises behind the neck of the
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The orbicularis oculi is a muscle in the face that closes the eyelids. It arises from the nasal part of the frontal bone, from the frontal process of the maxilla in front of the lacrimal groove, and from the anterior surface and borders of a short fibrous band, the medial
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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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The maxillary artery (or internal maxillary artery in older texts) is an artery that supplies deep structures of the face.

Structure



The maxillary artery, the larger of the two terminal branches of the external carotid artery, arises behind the neck of the
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The anterior superior alveolar arteries originate from the infraorbital artery; they supply the upper incisors and canines; they also supply the mucous membrane of the maxillary sinus.
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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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Arteries are muscular blood vessels that carry blood away from the heart.[1] All arteries, with the exception of the pulmonary and umbilical arteries, carry oxygenated blood.

The circulatory system is extremely important for sustaining life.
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The maxilla (plural: maxillae) is a fusion of two bones along the palatal fissure that form the upper jaw. This is similar to the mandible, which is also a fusion of two halves at the mental symphysis.
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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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The maxillary artery (or internal maxillary artery in older texts) is an artery that supplies deep structures of the face.

Structure



The maxillary artery, the larger of the two terminal branches of the external carotid artery, arises behind the neck of the
..... Click the link for more information.
The posterior superior alveolar artery (posterior dental artery) is given off from the internal maxillary, frequently in conjunction with the infraorbital just as the trunk of the vessel is passing into the pterygopalatine fossa.
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Near the middle of the posterior part of the orbital surface of the maxilla is the infraorbital groove (or sulcus), for the passage of the infraorbital vessels and nerve.
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infraorbital nerve. This nerve innervates the lower eyelid, upper lip, and part of the vestibule and exits the infraorbital foramen of the maxilla.

See also

  • infraorbital artery
  • external nasal nerve

Additional images


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infraorbital foramen, the end of the infraorbital canal; it transmits the infraorbital artery, vein, and infraorbital nerve.

External links

  • Norman/Georgetown cranialnerves ( V )
  • SUNY Labs 29:os-0506 (closeup)
  • SUNY Figs

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The levator labii superioris (or quadratus labii superioris) is a broad sheet, the origin of which extends from the side of the nose to the zygomatic bone.

Its medial fibers form the angular head
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The inferior rectus muscle is a muscle in the orbit.

Actions

It depresses, adducts, rotates laterally, and extorts the eye.

Innervation

As with most of the muscles of the orbit, it is innervated by the oculomotor nerve (Cranial Nerve III).
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The Obliquus oculi inferior (inferior oblique) is a thin, narrow muscle, placed near the anterior margin of the floor of the orbit.

Action

Its actions are lateral rotation, elevation and abduction of the eye.
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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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The anterior superior alveolar arteries originate from the infraorbital artery; they supply the upper incisors and canines; they also supply the mucous membrane of the maxillary sinus.
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Incisors (from Latin incidere, "to cut") are the first kind of tooth in heterodont mammals. They are located in the premaxilla.

Function

In many herbivorous or omnivorous mammals, such as the human and the horse, they are adapted for shearing sharply.
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This article or section may be confusing or unclear for some readers.
Please [improve the article] or discuss this issue on the talk page. This article has been tagged since December 1909.
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The mucous membranes (or mucosae; singular: mucosa) are linings of mostly endodermal origin, covered in epithelium, and are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs.
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The maxillary sinus (or Antrum of Highmore) is the largest of the paranasal sinuses, and is pyramidal in shape.

General characteristics

Found in the body of the maxilla, this sinus has three recesses: an alveolar recess pointed inferiorly, bounded by the alveolar
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The angular artery is the terminal part of the facial artery; it ascends to the medial angle of the orbit, imbedded in the fibers of the angular head of the Quadratus labii superioris, and accompanied by the angular vein.
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The facial artery (external maxillary artery in older texts) is a branch of the external carotid artery that supplies structures of the face.

Structure

The facial artery arises in the carotid triangle from the external carotid artery a little above the lingual
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The ophthalmic artery is a branch of the internal carotid artery which supplies branches to supply the eye and other structures in the orbit.

Branches

The branches of the ophthalmic artery are often subdivided into an orbital group and an ocular group [1] .
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The levator labii superioris (or quadratus labii superioris) is a broad sheet, the origin of which extends from the side of the nose to the zygomatic bone.

Its medial fibers form the angular head
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levator anguli oris (caninus) arises from the canine fossa, immediately below the infraorbital foramen.

Its fibers are inserted into the angle of the mouth, intermingling with those of the Zygomaticus, Triangularis, and Orbicularis oris.
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The facial artery (external maxillary artery in older texts) is a branch of the external carotid artery that supplies structures of the face.

Structure

The facial artery arises in the carotid triangle from the external carotid artery a little above the lingual
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The transverse facial artery is an artery that branches from the superficial temporal artery and runs across the face.

Course

The transverse facial artery is given off from the superficial temporal artery before that vessel leaves the parotid gland; running forward
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