The thick, mastoid part forms the lower, posterior portion of the bone. The temporal bone consists of a pair of bones that help make up the skull. Temporal bone fractures are a product of high-energy blunt trauma commonly resulting in fracture, hemorrhage, nerve trauma, vascular damage, with disruption of the middle or inner ear structures, classically classified into longitudinal, transverse, or oblique fractures. The parietal bone is an irregularly shaped bone that extends to cover the top of the skull along with some of each side of the skull. It is anatomically divided into four regions called the squamous, mastoid, temporal, and petrous parts. Injuries to this bone can cause a loss of function in the facial muscles, as well as hearing loss and heavy bleeding. Function . Understand the position of the middle and inner ear structures within the temporal bone. Function . The pinna attaches to the lateral surface of the temporal bone and opens up into the external auditory canal (EAC), which is an S-shaped tube that has a cartilaginous and osseous component. Temporal refers to the head's temples. Many cranial nerves and blood vessels pass through the temporal bone.
Due to its location on the skull, the parietal bone also touches other parts of the skull, including the frontal bone, temporal bone, and occipital bone.
The temporal bone consists of a pair of bones that help make up the skull. Its lower portion connects with the mandible or jawbone to allow the mouth to open and close. Temporal Bone Anatomy. The temporal bone has a complex anatomy and varied functions, and its cross-sectional imaging tends to be an intimidating endeavor. Understand the function of the ossicular chain. 8. The temporal bone is very complex and consists of five parts 1,2:. Temporal bone: A large irregular bone that is situated at the base and side of the skull. 1. In a lateral view (Grant's Atlas, Figs. The temporal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The temporal bone is comprised of four distinct osseous segments including tympanic, mastoid, petrous, and squamous. In addition, this bone surrounds the middle and inner portions of the ear. Temporal bone Axial temporal bone CT shows asymmetry in the shape and size of the internal auditory meati (arrows) with the left appearing narrower than the right. The temporal bone contributes to the lower lateral walls of the skull. The temporal bone is one of the most important calvarial and skull base bones. The temporal bone consists of a pair of bones that help make up the skull. The temporal lobe is involved in processing sensory input into derived meanings for the appropriate retention of visual memory, language comprehension, and emotion association. I. OSTEOLOGY of the TEMPORAL BONE A. Keep reading to learn more about the anatomy and function of the temporal bone. The temporalis muscle is a fan-shaped muscle located at the temporal bone in the skull, which is a bone of the side of the skull. It is to be hoped that a basic understanding of the anatomy of the temporal bone, and a systematic approach to the various pathologic entities that can affect it, can reduce the anxiety associated with, and improve the diagnostic yield of, its imaging. Over time, disruptions in these states can affect other bodily functions. Injuries to this bone can cause a loss of function in the facial muscles, as well as hearing loss and heavy bleeding. The flattened squamous part forms the superior region of the bone that helps protect the sides of the brain (temporal lobe). There are eight cranial bones, each with a unique shape: Frontal bone. squamous part
The temporal bone consists of a pair of bones that help make up the skull. Figure 1. Injuries to this bone can cause a loss of function in the facial muscles, as well as hearing loss and heavy bleeding. The temporal lobes are readily recognizable brain structures with a thumb-like appearance when viewed from the side (Fig. The occipital bone has a variety of functions. The temporal bone, in turn, receives its name from the fact that this is the place in which graying of hair starts, indicating aging with the passage of time (L. tempus). Temporal bones also house the internal carotid arteries and internal jugular veins, which play a role supplying oxygenated blood and venous drainage to and from the brain. It also acts as the connecting pathway from the brain to the spine. Introduction to temporal bone anatomy.