What does parietal mean?
The term parietal refers to structures that form the wall of a body cavity, such as the abdominal or cranial cavity. In anatomy, it is used to describe bones, cells, or layers that line or form the boundary of these cavities. For example, the parietal bone is a part of the skull, while parietal cells in the stomach lining play a crucial role in digestion. The term is often used in contrast to visceral, which pertains to the organs within the cavity. Understanding the parietal aspect of anatomy is essential for comprehending the organization and function of various bodily systems.
adjectiveRelating to or forming the wall of a body cavity, especially the skull or the abdominal cavity.
- Relating to the wall of a body cavity
- Anatomical term for structures forming the boundary of a cavity
"The parietal bone is a part of the skull that forms the roof and sides of the cranial cavity."
"The parietal layer of the serous pericardium lines the fibrous pericardium."
"Parietal cells in the stomach lining secrete hydrochloric acid."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of parietal
The word parietal originates from the Latin 'paries', meaning 'wall'. This Latin term is also seen in other English words such as 'pare' and 'peri-'. The adjective parietal has been used in English since the 15th century to describe anatomical structures related to body cavities.
Usage notes
In anatomy, 'parietal' often contrasts with 'visceral', which refers to the organs within a cavity.