| 词汇 | petrous |
| 释义 | petrous adjective anatomy specializeduk /ˈpet.rəs/ us /ˈpet.rəs/ relating to the very hard section of bone surrounding the inner ear: 颞骨岩部的 the petrous bone颞骨岩部 The ear antihelix antitragus audiological audiology auditory tube cochlea eardrum earlobe incus labyrinth labyrinthitis malleus mastoid cell membranous labyrinth organ of Corti saccule sacculus semicircular canal snug piercing stapedial Examples of petrouspetrous It enters the middle cranial fossa through the greater (superficial) petrosal foramen (on the anterior surface of the petrous temporal bone). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At the tip of the petrous temporal bone it makes a sharp turn forward to enter the cavernous sinus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The inferior ganglion on the inferior surface of petrous part of temporal is related with a triangular depression into which the aqueduct of cochlea opens. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is separated from the posterior fossa by the clivus and the petrous crest. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, fractures of the petrous temporal bone can selectively damage the nerve, as can aneurysms of the intracavernous carotid artery. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is directed superiorly, as per its nomenclature, and posteriorly, nearly parallel to the posterior surface of the petrous bone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Surgeons use this method to reach the cavernous sinus, lateral sphenoid sinus, infra temporal fossa, pterygoid fossa, and the petrous apex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The lateral approach is then used to reach the medial cavernous sinus and petrous apex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Similar symptoms can also occur secondary to petrous fractures or to nasopharyngeal tumours. 4. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its superior and inferior (petrous) ganglia contain the cell bodies of pain fibers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The petrous portion is among the most basal elements of the skull and forms part of the endocranium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Anteriorly it extends to the apex of the petrous temporal. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Before exiting the jugular foramen, the tympanic nerve enters the petrous portion of the temporal bone and ascends via the inferior tympanic canaliculus to the tympanic cavity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The orifice of the aquductus vestibuli is the hind part of the medial wall; it extends to the posterior surface of the petrous portion of the temporal bone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The most common cause of recurrent meningitis is a skull fracture, particularly fractures that affect the base of the skull or extend towards the sinuses and petrous pyramids. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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