Inferior Alveolar Nerve

Information about Inferior Alveolar Nerve

*Nerve:*

Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. (Inferior alveolar visible at center left.)

Mandibular division of the trifacial nerve. (Inferior alveolar labeled at bottom right.)
Latin	nervus alveolaris inferior
	subject #200 896
Innervates	dental alveolus
From	mandibular nerve
To	mylohyoid, dental, incisive, and mental
Dorlands/Elsevier	n_05/12565154

The inferior alveolar nerve (sometimes called the inferior dental 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 inferior alveolar nerve enters the mandible (lower jaw) via the mandibular foramen, located on the medial surface of the mandible.

The inferior alveolar nerve is located in the mandibular canal within the mandible, where it supplies the mandibular (lower) teeth with sensory branches.

Anteriorly, the nerve gives off the mental nerve at about the level of the mandibular 2nd premolars, which exits the mandible via the mental foramen (supplying sensory branches to the chin and lower lip).

The inferior alveolar nerve continues to innervate the mandibular canines and incisors.

Anesthesia

The inferior alveolar nerve is a common target for anesthesia during dental procedures involving the mandibular teeth.

Administration of anesthesia near the mandibular foramen causes blockage of the inferior alveolar nerve and the nearby lingual nerve (supplying the tongue). This is why the numbing of the lower jaw during dental procedures causes the patient to lose sensation in:

their teeth (inferior alveolar nerve block)
their lower lip and chin (mental nerve block)
and their tongue (lingual nerve block).

Additional images

Mandible of human embryo 95 mm. long. Inner aspect. Nuclei of cartilage stippled.

Mandibular division of trifacial nerve, seen from the middle line.

External links

• • [ e] 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 maxillary nerve (superior maxillary nerve), or second division of the trigeminal, is a sensory nerve.

It is intermediate, both in position and size, between the ophthalmic nerve and the mandibular nerve.
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The mandibular nerve (V₃) is the largest of the three branches of the trigeminal nerve.

Structure

Roots

It is made up of two roots:

a large sensory root proceeding from the inferior angle of the trigeminal ganglion.

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The submandibular ganglion (or submaxillary ganglion in older texts) is part of the human autonomic nervous system. It is one of four parasympathetic ganglia of the head and neck. (The others are the otic ganglion, pterygopalatine ganglion, and ciliary ganglion).
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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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Dental alveolus (plural, alveoli) are sockets in the jaws in which the roots of teeth are held in the alveolar process of maxilla with the periodontal ligament. The lay term for dental alveoli is tooth sockets.
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The mandibular nerve (V₃) is the largest of the three branches of the trigeminal nerve.

Structure

Roots

It is made up of two roots:

a large sensory root proceeding from the inferior angle of the trigeminal ganglion.

..... Click the link for more information.

The mylohyoid nerve (or nerve to mylohyoid) is a nerve that innervates the mylohyoid muscle and the anterior belly of the digastric muscle.

Structure

The mylohyoid nerve branches from the inferior alveolar nerve (a branch of the mandibular nerve, the third part of
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The mental nerve is a general somatic afferent (sensory) nerve which provides sensation to the anterior aspects of the chin and lower lip as well as the buccal gingivae of the mandibular anterior teeth and the premolars.
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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 mandibular nerve (V₃) is the largest of the three branches of the trigeminal nerve.

Structure

Roots

It is made up of two roots:

a large sensory root proceeding from the inferior angle of the trigeminal ganglion.

..... Click the link for more information.

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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mandible (from Latin mandibūla, "jawbone") or inferior maxillary bone is, together with the maxilla, the largest and strongest bone of the face . It forms the lower jaw and holds the lower teeth in place.
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The Mandibular foramen is an opening on the internal surface of the ramus (posterior and perpendicularly oriented part of the mandible) for divisions of the mandibular vessels and nerve to pass.
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The introduction to this article provides insufficient context for those unfamiliar with the subject matter.
Please help [ improve the introduction] to meet Wikipedia's layout standards.

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sensory system: in this case, vision, for the visual system. ]]

A sensory system is a part of the nervous system responsible for processing sensory information.
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Anterior can refer to:

Anterior and posterior, both Anatomical terms of location
Anterior (band), A Welsh Metal band

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The mental foramen is one of two holes ("foramina") located on the anterior surface of the mandible. It permits passage of the mental nerve and vessels. The mental foramen descends slightly in edentulous individuals^[1].
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As an acronym, CHIN may refer to:

Canadian Heritage Information Network, a government agency in Canada which promotes Canadian culture and heritage on the Internet

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Lips are a visible organ at the mouth of humans and many animals. Both lips are soft, protruding, movable, and serve primarily for food intake, as a tactile sensory organ, and in articulation of speech.
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Canines can refer to:

Canidae
Canine tooth

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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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Anesthesia or anaesthesia (see spelling differences; from Greek αν- an- “without” + αἲσθησις aisthesis
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Academy of Comprehensive Esthetics http://www.ACEsthetics.com

American Academy of Implant Dentistry Advancing the standard of care for comprehensive implant dentistry since 1951.

American Dental Education Association http://www.adea.
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The tongue is the large bundle of skeletal muscles on the floor of the mouth that manipulates food for chewing and swallowing (deglutition). It is the primary organ of taste. Much of the surface of the tongue is covered in taste buds.
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Teeth (singular, tooth) are structures found in the jaws (or mouths) of many vertebrates that are used to tear, scrape, and chew food. Some animals, particularly carnivores, also use teeth for hunting or defense. The roots of teeth are covered by gums.
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The lower lip covers the anterior body of the mandible.

It is lowered by the Depressor labii inferioris muscle.

External links

x at eMedicine Dictionary

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As an acronym, CHIN may refer to:

Canadian Heritage Information Network, a government agency in Canada which promotes Canadian culture and heritage on the Internet

..... Click the link for more information.

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Inferior Alveolar Nerve

Information about Inferior Alveolar Nerve

Anesthesia

Additional images

External links

Structure

Roots

Structure

Roots

Structure

Structure

Roots

Function

See also

External links