The temporal bone

Jd, Swartz; Hr, Harnsberger

doi:10.1097/00002142-199009000-00004

Cited by 7 publications

(20 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There is a supranuclear or upper motor neuron segment and a nuclear and infranuclear or lower motor neuron segment subdivided into four main segments: brainstem, cisternal, temporal bone and an extracranial parotid segment after the nerve exits the skull base through the stylomastoid foramen. The longest temporal bone segment is further subdivided into intracanalicular, tympanic or horizontal and mastoid or vertical segments [3,[26][27][28][29][30].…”

Section: Anatomymentioning

confidence: 99%

“…Finally, the nucleus solitarius or gustatory nucleus, slightly inferior to the former, receives afferent sensory fibres carrying taste from the anterior two thirds of the tongue and somatic afferent fibres for sensation in the pinna and external auditory canal. Fibres from the salivatory and gustatory nuclei join together before exiting the brainstem and form the so-called intermediate nerve of Wrisberg [3,5,26,[28][29][30].…”

Section: Brainstem Segmentmentioning

confidence: 99%

“…Both the VIIth and VIIIth nerves are covered by a common dural sheath ( Fig. 9) [3,5,26,[28][29][30].…”

Section: Cisternal Segmentmentioning

confidence: 99%

“…At the fundus, a transverse bony ridge, the crista falciformis, and a vertical ridge, known as Bill's bar, divides the internal auditory canal into four quadrants, where the facial nerve occupies the antero-superior quadrant (Fig. 9) [3,[28][29][30].…”

Section: Intracanalicular Segmentmentioning

confidence: 99%

“…It then penetrates the posterior aspect of the parotid gland, running anteriorly and laterally within the parotid parenchyma, lateral to the retromandibular vein and to the internal maxillary artery, and gives off its terminal branches: temporal, zygomatic, buccal, mandibular and cervical nerves, which supply motor innervation to the muscles of facial expression (Fig. 11) [3,[28][29][30]. …”

Section: Extracranial Parotid Segmentmentioning

confidence: 99%

See 4 more Smart Citations

Trigeminal neuralgia and facial nerve paralysis

Borges¹

2005

Eur Radiol

View full text Add to dashboard Cite

The trigeminal nerve is the largest of the cranial nerves. It provides sensory input from the face and motor innervation to the muscles of mastication. The facial nerve is the cranial nerve with the longest extracranial course, and its main functions include motor innervation to the muscles of facial expression, sensory control of lacrimation and salivation, control of the stapedial reflex and to carry taste sensation from the anterior two-thirds of the tongue. In order to be able adequately to image and follow the course of these cranial nerves and their main branches, a detailed knowledge of neuroanatomy is required. As we are dealing with very small anatomic structures, high resolution dedicated imaging studies are required to pick up normal and pathologic nerves. Whereas CT is best suited to demonstrate bony neurovascular foramina and canals, MRI is preferred to directly visualize the nerve. It is also the single technique able to detect pathologic processes afflicting the nerve without causing considerable expansion such as is usually the case in certain inflammatory/infectious conditions, perineural spread of malignancies and in very small intrinsic tumours. Because a long course from the brainstem nuclei to the peripheral branches is seen, it is useful to subdivide the nerve in several segments and then tailor the imaging modality and the imaging study to that specific segment. This is particularly true in cases where topographic diagnosis can be used to locate a lesion in the course of these nerves.

show abstract

Section: Anatomymentioning

confidence: 99%

Section: Brainstem Segmentmentioning

confidence: 99%

“…Both the VIIth and VIIIth nerves are covered by a common dural sheath ( Fig. 9) [3,5,26,[28][29][30].…”

Section: Cisternal Segmentmentioning

confidence: 99%

Section: Intracanalicular Segmentmentioning

confidence: 99%

Section: Extracranial Parotid Segmentmentioning

confidence: 99%