The word "temporal crest" refers to a bony prominence on the side of the skull, which is responsible for the attachment of the temporal muscle. In IPA phonetic transcription, the word is spelled /ˈtɛmpərəl krɛst/, where the first syllable is pronounced with a short "e" sound and the second syllable with a schwa sound. The "r" sound in both syllables is pronounced with a slight trill, and the final syllable is pronounced with a short "e" sound followed by the "st" consonant cluster.
The term "temporal crest" refers to a prominent bony ridge found on the side of the skull, specifically in the temporal region. It is a distinguishing anatomical feature that is characteristic of various species, including humans and some animals.
The temporal crest is a ridge that runs horizontally, extending from the side of the skull towards the back. It provides attachment for several muscles, including the temporalis muscle, which is responsible for the movement and chewing of the jaw. The crest offers a strong anchor for these muscles, enabling them to exert the necessary force for proper mastication.
In terms of its structure, the temporal crest is formed by the thickened outer layer of bone called the temporal line, which gradually elevates and becomes more pronounced as it moves towards the back of the skull. This ridge can be felt and observed on the outside of the head, particularly when pressure is applied.
From an evolutionary perspective, the development of a well-defined temporal crest is believed to be associated with the increased size and strength of the temporalis muscle. This development is often linked to dietary changes and the need for enhanced chewing capabilities to process tougher foods.
In summary, the temporal crest is a notable bony ridge located on the side of the skull. It serves as a muscular attachment point, specifically for the temporalis muscle, facilitating proper jaw movement and chewing. This anatomical feature is found in various species and is thought to have developed in response to dietary changes over time.
Crista temporalis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "temporal" originates from the Latin word "temporalis", which is derived from "tempus" meaning "time". In anatomy, it is used to describe the region near the temple of the skull.
The term "crest" has its roots in the Old English word "criste" or "cresta", which refers to the top or highest part of something.
When combined, "temporal crest" refers to the bony ridge found on the temporal bone, which is the part of the skull situated on the sides and base of the cranium. The temporal crest serves as an attachment point for various muscles including the temporalis muscle, which helps in jaw movement and chewing.