What are the features of temporal bone?

What are the features of temporal bone?

The temporal bone features important structures of the vestibulocochlear apparatus, including the external acoustic meatus, the tympanic cavity and the structures of the inner ear. Each temporal bone consists of four parts: petrous, mastoid, tympanic, and squamous parts.

What is the function of temporal bone?

Function. The temporal bone provides structural support for the skull, while protecting the cerebrum of the brain and surrounding membranes. In addition, this bone surrounds the middle and inner portions of the ear.

What are the three parts of the temporal bone?

The temporal bone is divided into several main parts/portions 1-3:

• squamous part (temporal squama)
• petrous part (petrous pyramid)
• tympanic part.
• mastoid part (usually considered a separate part but it is formed by both the squamous and petrous parts)

What are the main important markings of the temporal bones?

Terms in this set (12)

• Squamous part. Located inferior to the squamous suture.
• Zygomatic process. Located at squamous part; a bridge like projection that articulates with the zygomatic bone.
• Mandibular fossa.
• Tympanic part.
• External acoustic meatus.
• Styloid process.
• Petrous part.
• Jugular foramen.

Why is it called the temporal bone?

Etymology. Its exact etymology is unknown. It is thought to be from the Old French temporal meaning “earthly,” which is directly from the Latin tempus meaning “time, proper time or season.” Temporal bones are situated on the sides of the skull, where grey hairs usually appear early on.

What does a temporal bone fracture feel like?

Temporal bone fractures, especially the oblique variety (see above), may impair hearing and cause dizziness. There often is blood seen behind the ear-drum (hemotympanum). Either a conductive or sensorineural hearing loss or both may be present.

What is the purpose of your temples?

The temple is a juncture where four skull bones fuse together: the frontal, parietal, temporal, and sphenoid. It is located on the side of the head behind the eye between the forehead and the ear. The temporal muscle covers this area and is used during mastication.

What type of bone is temporal?

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 is the relationship between the temporal bone and the ear quizlet?

What is the relationship between the temporal bone and the ear? The petrous part of the temporal bone encloses the structures of the internal ear. Thmiddle ear is located in the tympanic cavity within the petrous part. The external acoustic meatus ends at the tympanic membrane, which leads into the middle ear.

Where is your temporal bone located?

the skull
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 is temple in our body?

Description. Temple indicates the side of the head behind the eyes. The bone beneath is the temporal bone as well as part of the sphenoid bone.

What happens if you break your temporal bone?

A temporal bone fracture may cause facial paralysis, hearing loss, bruising behind the ear, and bleeding from the ear. Doctors use computed tomography (CT) to diagnose temporal bone fractures. Treatment, sometimes including surgery, is needed if the fracture causes problems.

What are temporal bone structures?

In evolutionary terms, the temporal bone is derived from the fusion of many bones that are often separate in non-human mammals: The squamosal bone, which is homologous with the squama, and forms the side of the cranium in many bony fish and tetrapods.

What is temporal bone anatomy?

temporal bone. n. (Anatomy) either of two compound bones forming part of the sides and base of the skull: they surround the organs of hearing.

What is a temporal bone tumor?

Temporal Bone Tumors. A temporal bone tumor can be benign or cancerous. This type of tumor is rare and forms when cancer of the skin invades the outer part of the ear and the ear canal. In most cases, the temporal bone tumor is a squamous cell carcinoma, adenoid cystic carcinoma or ceruminomatous adenoid carcinoma of the ear.

What is the CPT code for CT temporal bone?

To get access to this feature. CPT 69960, Under Surgical Procedures on the Temporal Bone, Middle Fossa Approach. The Current Procedural Terminology (CPT) code 69960 as maintained by American Medical Association, is a medical procedural code under the range – Surgical Procedures on the Temporal Bone, Middle Fossa Approach.