Contents
What is the temporal bone function?
The temporal bone is a thick, hard bone that forms part of the side and base of the skull. This bone protects nerves and structures in the ear that control hearing and balance.
What are the processes of the temporal bone?
This lesson will explore the processes of the temporal bone: the zygomatic process, the mastoid process and the styloid process.
What is the temporal bone called?
Tympanic bone: the tympanic part: this is derived from the angular bone of the reptilian lower jaw. Periotic bone: the petrous and mastoid parts. Two parts of the hyoid arch: the styloid process. In the dog these small bones are called tympanohyal (upper) and stylohyal (lower).
What is petrous part of temporal bone?
The petrous part of the temporal bone (or more simply petrous temporal bone, PTB) forms the part of skull base between the sphenoid and occipital bones.
Which features are found in the tympanic part of the temporal bone?
The tympanic part of the temporal bone is a curved plate immediately below the origin of the zygomatic process. Its concave posterior surface forms the anterior wall, floor and part of the posterior wall of the external acoustic meatus. The external acoustic opening is clearly visible on this part.
Is temporal bone a facial bone?
The joint between the mandible and the temporal bones of the neurocranium, known as the temporomandibular joint, forms the only non-sutured joint in the skull. Facial bones: There are fourteen facial bones. Some, like the lacrimal and nasal bones, are paired. Others, like the mandible and vomer, are singular.
What is the temporal process?
Medical Definition of temporal process : a process of the zygomatic bone that with the zygomatic process of the temporal bone with which it articulates laterally forms part of the zygomatic arch.
Where is petrous part of temporal bone?
The petrous part of the temporal bone is pyramid-shaped and is wedged in at the base of the skull between the sphenoid and occipital bones. Directed medially, forward, and a little upward, it presents a base, an apex, three surfaces, and three angles, and houses in its interior, the components of the inner ear.
Why is Petrous used to describe the temporal bone?
Why is this term used to describe the petrous part of the temporal bone? It houses sensory structures of the inner ear that provide information about hearing and balance. What structures are found deep within the petrous part of the temporal bone?
Which three features are found on the temporal bone?
The temporal bone (Latin: os temporale) is a paired bone situated at the lateral side and base of the skull. This bone features important structures of the vestibulocochlear apparatus, including the external acoustic meatus, the tympanic cavity and the structures of the inner ear.
What is tympanic plate of temporal bone?
The tympanic plate is a small part of the temporal bone that separates the mandibular condyle from the external auditory canal. Fracture of this small plate is rare and usually associated with other bony fractures, mainly temporal and mandibular bone.
Is temporal bone paired?
The temporal bones are paired bones that help make up the sides and base of the skull (cranium). This places them lateral—to the side of—the temporal lobes of the brain’s cerebral cortex, ensuring that the cranium is properly supported and protecting the important structures there.
Qual a origem do osso frontal?
O osso frontal dá origem aos músculos temporal, abaixador do supercílio, corrugador do supercílio, parte orbital do orbicular do olho e oblíquo superior do olho. Frontal em destaque no crânio. Vista em 360°.
Quais são as aberturas do osso temporal?
Há um número de aberturas e canais no osso temporal através dos quais as estruturas entram e saem da cavidade craniana. O osso temporal também abriga as estruturas que formam o ouvido médio e interno.
Quais são os ossos temporais?
Os ossos temporais são um par de ossos simétricos e bilaterais que constituem uma grande porção da parede lateral e da base do crânio. Eles são ossos altamente irregulares com anexos musculares extensos e articulações com os ossos circundantes. Há um número de aberturas e canais no osso temporal através dos quais as estruturas entram e saem da
Quais são as principais características do osso parietal?
Características principais do osso parietal Articulações Frontal, parietal contralateral, tempora Superfície interna Sulcos da artéria meníngea média, sulco Superfície externa Linhas temporais superior e inferior, fo Desenvolvimento ósseo Crescimento ósseo central, ossificação .