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A glomus jugulare tumor is a tumor of the part of the temporal bone in the skull that involves the middle and inner ear structures. This tumor can affect the ear, upper neck, base of the skull, and the surrounding blood vessels and nerves. A glomus jugulare tumor grows in the temporal bone of the skull, in an area called the jugular foramen.
It is innervated by the trigeminal nerve and molds muscles related to mastication such as temporal, masseter, medial, lateral, pterygoid bones, tensor palati, and tensor tympani. This arch originates maxillar and mandibular prominences, part of the temporal bone and Meckel's cartilage (malleus and incus) as skeletal structures. The second ...
Lateral ventricles and horns The lateral ventricles connected to the third ventricle by the interventricular foramina. Each lateral ventricle takes the form of an elongated curve, with an additional anterior-facing continuation emerging inferiorly from a point near the posterior end of the curve; the junction is known as the trigone of the lateral ventricle.
The temporal muscle covers this area and is used during mastication. Cladistics classify land vertebrates based on the presence of an upper hole , a lower hole , both , or neither in the cover of dermal bone that formerly covered the temporalis muscle , whose origin is the temple and whose insertion is the jaw .
The arcuate eminence is a rounded [3] [4]: 567 prominence [3] upon the superior surface of [3] [5]: 420 the petrous part of the temporal bone [3] forming the lateral part of the posterior wall of [5]: 509 the middle cranial fossa.
Skull bossing is a descriptive term in medical physical examination indicating a protuberance of the skull, most often in the frontal bones of the forehead ("frontal bossing"). Although prominence of the skull bones may be normal, skull bossing may be associated with certain medical conditions, [ 1 ] including nutritional, metabolic, hormonal ...
The inion is the most prominent projection of the protuberance which is located at the posterioinferior (rear lower) part of the human skull. The nuchal ligament and trapezius muscle attach to it. The inion (ἰνίον, iníon, Greek for the occipital bone) is used as a landmark in the 10-20 system in electroencephalography (EEG) recording.
The occipital bun is a protuberance of the occipital bone. Its size and shape has been compared to that of a dinner roll. It is a quintessential trait of Neanderthals, though it is a trend in archaic Homo species. The true purpose of the occipital bun has not yet been defined. [3] However, some studies have found possible evolutionary purposes.