How Do You Spell PETROUS PORTION?

Pronunciation: [pˈɛtɹəs pˈɔːʃən] (IPA)

The spelling of the word "petrous portion" is unique due to the pronunciation of the word. It is pronounced as /ˈpiːtrəs ˈpɔːʃən/ in IPA phonetic transcription. The word "petrous" has a silent "o" and is pronounced as "pee-tr-uhs". The word "portion" is pronounced as "paw-shun". The term "petrous portion" refers to a part of the temporal bone in the skull, and accurate spelling is essential in the medical field where clear communication can make all the difference.

PETROUS PORTION Meaning and Definition

1. The petrous portion is a term used in anatomy to refer to a specific region of the temporal bone, a skull bone situated on each side of the head. It is the densest and toughest portion of the temporal bone, and it is located deep within the cranial cavity. The petrous portion contains numerous vital structures such as the inner ear, middle ear, and several important nerves and blood vessels.

   Anatomically, the petrous portion is shaped like a pyramid and is positioned bilaterally underneath the squamous part of the temporal bone. It acts as a protective shield for the inner ear structures including the cochlea, semicircular canals, and vestibule. Moreover, it houses the middle ear cavity, which contains the ossicles - small bones responsible for sound transmission.

   Due to its dense nature, the petrous portion is relatively well-preserved in archaeological and paleontological remains, making it an important area of study for scientists in these fields. It is also clinically significant as it is involved in various disorders and pathologies affecting the auditory system, including conditions like cholesteatoma and temporal bone fractures.

   Overall, the petrous portion of the temporal bone is a critically invaluable region in the human skull, housing crucial components of the hearing system and protecting delicate structures needed for auditory function.

2. A three-sided pyramidal projection, from the inner surface of the temporal bone, containing the structures of the internal ear; it is usually united at birth with the mastoid portion.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for PETROUS PORTION

• petrous portinn
• petrous portiof
• petrous portiol
• petrous portioo
• petrouspoartion
• petrousporetion
• pe trous portion
• pet rous portion
• petr ous portion
• petro us portion
• petrou s portion
• petrous po rtion
• petrous por tion
• petrous port ion
• petrous porti on
• petrous portio n

Etymology of PETROUS PORTION

The word "petrous" has its origins in Latin and Greek.

The Latin word "petrosus" means "rocky" or "stone-like". It comes from the Greek word "petra", meaning "rock" or "stone".

The term "portion" is derived from the Latin word "portio", which means "a part" or "a share".

Therefore, the etymology of "petrous portion" can be traced back to the Latin and Greek roots, meaning "rocky part" or "stone-like section". In the context of anatomy, it refers to a portion of the temporal bone in the skull, which is dense and stone-like in its composition.