What is Temporal Bone?

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The skeletal frame is made up of You do not have access to view this node. Although the skeleton which we see in museums and that in our body are similar in structure, the ones outside are dead while our skeleton is very much growing. Many people think bones to be non living or non growing things but as long as they are attached to our body they keep on growing and changing like other parts and organs. Depending upon the nature of work, the bones differ in their structure. But their composition almost remains the same. Temporal You do not have access to view this node is one such type of bone which is an integral part of the You do not have access to view this node.

What is a temporal bone?

Temporal You do not have access to view this node is a type of compound bone placed on the side of the skull and is divided into four parts:

• Squamous
• Petrous
• tympanic portions
• mastoid process

What is the structure of temporal bone?

Temporal You do not have access to view this node is placed on either side of the skull and performs the function of joining the parietal bone along side the squamosal suture. The temporal You do not have access to view this node also compose the base and either sides of cranium. Just above inferior temporal line and on parietal bone lies the topmost curved line of superior temporal line where the temporal fascia is attached. The inferior temporal line is present on the parietal bone surface and is attached to temporal muscle. The external auditory meatus is placed in the gap of the lower edge which moves further inwards to join the ear parts. The internal ear structure of temporal You do not have access to view this node are in housed by the temporal bones and these have depressions called as mandibular fossae which further connects with the processes of mandible.

What is a mastoid and styloid process?

The external auditory meatus below it comprises of two projections: mastoid process which is rounded and styloid process which is pointed. The purpose of mastoid process is to provide attachment base to particular muscles of neck whereas, the styloid process provides attachment for muscles connected with pharynx and tongue. The mastoid foramen located in the temporal You do not have access to view this node is placed beneath the mastoid process or posterior to it and is a major opening. This opening allows artery and vein to pass. Zygomatic process comes out from the frontal temporal bone and is located in the external auditory meatus region. The prominence of cheek is formed by the joining of zygomatic bone with the external auditory meatus.

What is temporal bone trauma?

Blunt head injury is usually considered as the temporal bone trauma. Temporal bone damage is usually caused by the exertion of huge force and it may lead to hemorrhage, nerve trauma, fracture, vascular damage or trouble in inner or middle ear structure. Some other troubles associated with temporal bone trauma are extra-axial hemorrhage, brain contusion or shear injury or diffuse axonal injury. The complications related to temporal bone trauma include infection such as meningitis, loss of hearing, facial and other type of cranial nerve injury, perilymphatic fistula, cerebrospinal fluid leak or otorrhea. So as to avoid long lasting injury and complications it is necessary that the symptoms of this trauma are identified at the start.

 

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