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Information about Stylomastoid Artery

Artery:
The arteries of the face and scalp.
Latinarteria stylomastoidea
subject #144 557
Suppliestympanic cavity, tympanic antrum, mastoid cells, semicircular canals
Sourceposterior auricular artery
Dorlands/Elsevier a_61/12156035
The stylomastoid artery enters the stylomastoid foramen and supplies the tympanic cavity, the tympanic antrum and mastoid cells, and the semicircular canals.

In the young subject a branch from this vessel forms, with the anterior tympanic artery from the internal maxillary, a vascular circle, which surrounds the tympanic membrane, and from which delicate vessels ramify on that membrane.

It anastomoses with the superficial petrosal branch of the middle meningeal artery by a twig which enters the hiatus canalis facialis.

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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 As such, some of the information contained herein may be outdated.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
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 tympanic cavity is a small cavity surrounding the bones of the middle ear.

It is formed from the tubotympanic sulcus, an expansion of the first pharyngeal pouch.
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Mastoid antrum (or tympanic antrum) is a cavity in the petrous portion of the temporal bone, communicating posteriorly with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aperture of the mastoid antrum.
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mastoid cells, which exhibit the greatest possible variety as to their size and number.

At the upper and front part of the process they are large and irregular and contain air, but toward the lower part they diminish in size, while those at the apex of the process are
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The semicircular canals are three half-circular, interconnected tubes located inside each ear that are the equivalent of three gyroscopes located in three orthogonal planes.
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The posterior auricular artery is a small artery and arises from the external carotid artery, above the Digastric muscle and Stylohyoid muscle, opposite the apex of the styloid process.
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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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stylomastoid foramen

It is the termination of the facial canal, and transmits the facial nerve and stylomastoid artery.

Clinical Relevance

Bell's palsy can result from inflammation of the facial nerve where it leaves the skull at the stylomastoid foramen.
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The tympanic cavity is a small cavity surrounding the bones of the middle ear.

It is formed from the tubotympanic sulcus, an expansion of the first pharyngeal pouch.
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Mastoid antrum (or tympanic antrum) is a cavity in the petrous portion of the temporal bone, communicating posteriorly with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aperture of the mastoid antrum.
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mastoid cells, which exhibit the greatest possible variety as to their size and number.

At the upper and front part of the process they are large and irregular and contain air, but toward the lower part they diminish in size, while those at the apex of the process are
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The semicircular canals are three half-circular, interconnected tubes located inside each ear that are the equivalent of three gyroscopes located in three orthogonal planes.
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The tympanic membrane, colloquially known as the eardrum, is a thin membrane that separates the external ear from the middle ear. Its function is to transmit sound vibrations from the air, conducted through the external acoustic meatus to the ossicles inside the
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Anastomosis (plural anastomoses) refers to a form of network in which streams both branch out and reconnect. The term is used in medicine, biology, and geology.

Medicine

Anastomosis is the surgical connection of two structures.
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The middle meningeal artery (Latin arteria meningea media) is typically the first branch of the first part (retromandibular part) of the maxillary artery; one of the two terminal branches of the external carotid artery.
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A shallow groove, sometimes double, leading lateralward and backward to an oblique opening, the hiatus of the facial canal, for the passage of the greater superficial petrosal nerve and the petrosal branch of the middle meningeal artery.
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eMedicine is an online clinical medical knowledge base that was founded in 1996 by Scott Plantz and Richard Lavely, two medical doctors. It was sold to WebMD in January 2006.
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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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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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Head and neck anatomy focuses on the structures of the head and neck of the human body, including the brain, bones, muscles, blood vessels, nerves, glands, nose, mouth, teeth, tongue, and throat.
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In human anatomy, the common carotid artery is an artery that supplies the head and neck with oxygenated blood; it divides in the neck to form the external and internal carotid arteries.
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In human anatomy, the external carotid artery is a major artery of the head and neck. It arises from the common carotid artery when it bifurcates into an internal and external branch.
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The superior thyroid artery arises from the external carotid artery just below the level of the greater cornu of the hyoid bone and ends in the thyroid gland.

Relations


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The superior laryngeal artery accompanies the internal laryngeal branch of the superior laryngeal nerve, beneath the Thyreohyoideus.

It pierces the hyothyroid membrane, and supplies the muscles, mucous membrane, and glands of the larynx, anastomosing with the branch from
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The lingual artery arises from the external carotid between the superior thyroid and facial artery.

It first runs obliquely upward and medialward to the greater cornu of the hyoid bone.
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The Sublingual Artery arises at the anterior margin of the Hyoglossus, and runs forward between the Genioglossus and Mylohyoideus to the sublingual gland.

It supplies the gland and gives branches to the Mylohyoideus and neighboring muscles, and to the mucous membrane of the
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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 ascending palatine artery is an artery in the head that branches off the facial artery and runs up the superior pharyngeal constrictor muscle.

Structure

The ascending palatine artery arises close to the origin of the facial artery and passes up between the
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The tonsillar branch of the facial artery ascends between the Pterygoideus internus and Styloglossus, and then along the side of the pharynx, perforating the Constrictor pharyngis superior, to ramify in the substance of the palatine tonsil and root of the tongue.
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