Nerve to the stapedius

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Nerve to the stapedius
Details
From Facial nerve
Innervates Stapedius
Identifiers
Latin nervus stapedius
TA98 A14.2.01.101
TA2 6291
FMA 53275
Anatomical terms of neuroanatomy

The nerve to the stapedius is a branch of the facial nerve (CN VII) which innervates the stapedius muscle. [1] It arises from the CN VII within the facial canal, [2] opposite the pyramidal eminence. It passes through a small canal in this eminence to reach the stapedius muscle. [3]

Related Research Articles

<span class="mw-page-title-main">Facial nerve</span> Cranial nerve VII, for the face and tasting

The facial nerve, also known as the seventh cranial nerve, cranial nerve VII, or simply CN VII, is a cranial nerve that emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue. The nerve typically travels from the pons through the facial canal in the temporal bone and exits the skull at the stylomastoid foramen. It arises from the brainstem from an area posterior to the cranial nerve VI and anterior to cranial nerve VIII.

<span class="mw-page-title-main">Great auricular nerve</span> Cutaneous nerve of the head

The great auricular nerve is a cutaneous (sensory) nerve of the head. It originates from the second and third cervical (spinal) nerves (C2-C3) of the cervical plexus. It provides sensory innervation to the skin over the parotid gland and the mastoid process, parts of the outer ear, and to the parotid gland and its fascia.

<span class="mw-page-title-main">Digastric muscle</span> Small muscle located under the jaw in mammals

The digastric muscle is a bilaterally paired suprahyoid muscle located under the jaw. Its posterior belly is attached to the mastoid notch of temporal bone, and its anterior belly is attached to the digastric fossa of mandible; the two bellies are united by an intermediate tendon which is held in a loop that attaches to the hyoid bone. The anterior belly is innervated via the mandibular nerve, and the posterior belly is innervated via the facial nerve. It may act to depress the mandible or elevate the hyoid bone.

<span class="mw-page-title-main">Lateral cricoarytenoid muscle</span>

The lateral cricoarytenoid is an intrinsic muscle of the larynx. It attaches at the cricoid cartilage anteriorly, and at the arytenoid cartilage of the same side posteriorly. It is innervated by the recurrent laryngeal nerve. It acts to close the rima glottidis, thus closing the airway.

<span class="mw-page-title-main">Corrugator supercilii muscle</span> Muscle near the eye

The corrugator supercilii muscle is a small, narrow, pyramidal muscle of the face. It arises from the medial end of the superciliary arch; it inserts into the deep surface of the skin of the eyebrow.

<span class="mw-page-title-main">Stylohyoid muscle</span> Muscle

The stylohyoid muscle is one of the suprahyoid muscles. Its originates from the styloid process of the temporal bone; it inserts onto hyoid bone. It is innervated by a branch of the facial nerve. It acts draw the hyoid bone upwards and backwards.

<span class="mw-page-title-main">Zygomaticus minor muscle</span> Facial muscle that draws the upper lip upwards and backwards during smiling

The zygomaticus minor muscle is a muscle of facial expression. It originates from the zygomatic bone, lateral to the rest of the levator labii superioris muscle, and inserts into the outer part of the upper lip. It draws the upper lip backward, upward, and outward and is used in smiling. It is innervated by the facial nerve (VII).

<span class="mw-page-title-main">Risorius</span> Facial muscle

The risorius muscle is a highly variable muscle of facial expression. It has numerous and very variable origins, and inserts into the angle of the mouth. It receives motor innervation from branches of facial nerve. It may be absent or asymmetrical in some people. It pulls the angle of the mouth sidewise, such as during smiling.

<span class="mw-page-title-main">Nasociliary nerve</span> Branch of the ophthalmic nerve

The nasociliary nerve is a branch of the ophthalmic nerve (CN V1) (which is in turn a branch of the trigeminal nerve (CN V)). It is intermediate in size between the other two branches of the ophthalmic nerve, the frontal nerve and lacrimal nerve.

<span class="mw-page-title-main">Posterior auricular artery</span> Small artery

The posterior auricular artery is a small artery that arises from the external carotid artery. It ascends along the side of the head. It supplies several muscles of the neck and several structures of the head.

<span class="mw-page-title-main">Infratrochlear nerve</span>

The infratrochlear nerve is a branch of the nasociliary nerve (itself a branch of the ophthalmic nerve (CN V1)) in the orbit. It exits the orbit inferior to the trochlea of superior oblique. It provides sensory innervation to structures of the orbit and skin of adjacent structures.

<span class="mw-page-title-main">Zygomaticotemporal nerve</span> Small nerve of the face

The zygomaticotemporal nerve (zygomaticotemporal branch, temporal branch) is a cutaneous (sensory) nerve of the head. It is a branch of the zygomatic nerve (itself a branch of the maxillary nerve (CN V2)). It arises in the orbit and exits the orbit through the zygomaticotemporal foramen in the zygomatic bone to enter the temporal fossa. It is distributed to the skin of the side of the forehead. It also contains a parasympathetic secretomotor component for the lacrimal gland which it confers to the lacrimal nerve (which then delivers it to the gland).

<span class="mw-page-title-main">Zygomaticofacial nerve</span>

The zygomaticofacial nerve (or zygomaticofacial branch of zygomatic nerve or malar branch of zygomatic nerve) is a cutaneous (sensory) branch of the maxillary nerve (CN V2) that arises within the orbit. The zygomaticofacial nerve penetrates the inferolateral angle of the orbit, emerging into the face through the zygomaticofacial foramen, then penetrates the orbicularis oculi muscle to reach and innervate the skin of the prominence of the cheek.

<span class="mw-page-title-main">Facial canal</span> Hole in the temporal bone of the skull carrying the facial nerve

The facial canal is a Z-shaped canal in the temporal bone of the skull. It extends between the internal acoustic meatus and stylomastoid foramen. It transmits the facial nerve.

<span class="mw-page-title-main">Masseteric nerve</span> Nerve of the face

The masseteric nerve is a nerve of the face. It is a branch of the mandibular nerve (CN V3). It passes through the mandibular notch to reach masseter muscle. It provides motor innervation the masseter muscle, and sensory innervation to the temporomandibular joint.

<span class="mw-page-title-main">Infraorbital nerve</span> Branch of the maxillary nerve supplying the face

The infraorbital nerve is a branch of the maxillary nerve. It arises in the pterygopalatine fossa. It passes through the inferior orbital fissure to enter the orbit. It travels through the orbit, then enters and traverses the infraorbital canal, exiting the canal at the infraorbital foramen to reach the face. It provides sensory innervation to the skin and mucous membranes around the middle of the face.

<span class="mw-page-title-main">Pyramidal eminence</span>

The pyramidal eminence is a hollow conical projection upon the posterior wall of the tympanic cavity of the middle ear. The stapedius muscle arises in the hollow of the eminence and its tendon exits through its apex.

<span class="mw-page-title-main">Digastric branch of facial nerve</span>

The digastric branch of facial nerve provides motor innervation to the posterior belly of the digastric muscle. It branches from the facial nerve near to the stylomastoid foramen as the CN VII exits the facial canal. It commonly arises in common with the stylohyoid branch of facial nerve.

<span class="mw-page-title-main">Stylohyoid branch of facial nerve</span> Human facial nerve branch

The stylohyoid branch of facial nerve provides motor innervation to the stylohyoid muscle. It frequently arises from the facial nerve in common with the digastric branch of facial nerve.

<span class="mw-page-title-main">Superior deep cervical lymph nodes</span> Lymphatic Organs

The superior deep cervical lymph nodes are the deep cervical lymph nodes that are situated adjacent to the superior portion of the internal jugular vein. They drain either to the inferior deep cervical lymph nodes or into the jugular trunk.

References

  1. The Big Picture: Gross Anatomy, Medical Course & Step 1 Review. David A. Morton, K. Bo Foreman, Kurt H. Albertine (2nd ed.). New York. 2018. p. 222. ISBN   978-1-259-86264-9. OCLC   1044772257.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)
  2. Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. p. 749. ISBN   978-0-7020-7707-4. OCLC   1201341621.{{cite book}}: CS1 maint: location missing publisher (link)
  3. Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 904.