protects sensory structures in inner ear
Petrous apicectomy is performed to drain the petrous apicitis
The term "petrous" usually refers to the dense, hard part of the temporal bone in the skull, specifically the petrous part. This part of the temporal bone protects delicate structures like the inner ear and houses important nerves associated with hearing and balance.
petrous
petrous
petrous part of the temporal bone
W. Pellet has written: 'Otoneurosurgery' -- subject(s): Cranial Nerve Neoplasms, Cranial Nerves, Petrous bone, Surgery, Tumors, Petrous Bone
The word petrous refers to the hard temporal bone in anatomy. But its second definition is "like stone, especially in hardness; stony; rocky". The criminal's hard, emotionless face had a petrous quality.
Petrous apicitis refers to an infection or inflammation of the mastoid or petrous part of the temporal bone, which is located behind the ear. This condition can cause symptoms such as ear pain, fever, and hearing loss, and may require treatment with antibiotics or surgery depending on the severity. Prompt diagnosis and treatment are important to prevent complications.
The auditory apparatus or ears are placed in the petrous part of the temporal bone.
The structures that are found deep within the petrous part of the temporal bone are related to the inner ear. Most scientists divide the structures into two parts the mastoid part and the petromastoid part.
In your skull you have a temporal bone. The petrous part of the temporal bone is considered to be the strongest bone in the body.
The phrase suggests that certain powerful or destructive forces (metaphorically represented by "missiles of ligneous or petrous consistency") can threaten to disrupt or damage your foundational beliefs or stability ("caseous structure"). However, despite these potential threats, the labels or names we use to describe these forces ("appellations") will always lack real harm or impact. Essentially, it highlights the contrast between the potential for damage and the relative harmlessness of mere words.