stylomastoid


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stylomastoid

[¦stī·lō′ma‚stȯid]
(anatomy)
Relating to the styloid and the mastoid processes of the temporal bone.
References in periodicals archive ?
Buccal branches of facial nerve were first identified and then followed backwards towards the main trunk near the stylomastoid foramen.
The facial nerve exits the temporal bone at the stylomastoid foramen and enters the parenchyma of the parotid gland after it gives off the posterior auricular, posterior digastric, and stylohyoid muscle branches.
The facial nerve trunk was then carefully located by blunt dissection as it emerges from the stylomastoid foramen immediately above the attachment of the posterior belly of digastric muscle and along the anterior border of the mastoid process.
Muren et al used polyester casts of temporal bone specimens to measure the distance between the stylomastoid foramen and the departure point of the chorda tympani; the mean length was 4.
5) Spread of infection to the skull base can occur in three directions: (1) anteriorly through the fissures of Santorini to involve the infratemporal fossa, parotid gland, and facial nerve at the stylomastoid foramen; (2) posteriorly to invade the mastoid process and the vertical portion of the facial nerve; and (3) medially as an osteomyelitis affecting the jugular foramen, thereby involving cranial nerves IX, X, XI, and XII and possibly causing jugular venous thrombosis, brain abscess, and death.
Cenk Kilic, Yalcin Kirici and Murat Kocaoglu, Double facial nerve trunk emerged from the stylomastoid foramen and petrotympanic fissure; A case report; J.
The facial nerve is transected proximal to the stylomastoid foramen at the distal vertical (mastoid) segment.
Facial nerve is also susceptible to trauma as it exits the stylomastoid foramen where soft tissue compression can lead to transient neuropraxia.
The arterial blood supply is typically the ascending pharyngeal artery and the stylomastoid branch of the occipital artery.