PETROSOMASTOID Meaning and
Definition
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Petrosomastoid is a term used in the field of anatomy to describe a specific structure present in the human skull. It refers to a muscle connecting the petrous part of the temporal bone to the mastoid process, located at the base of the skull. The term "petrosomastoid" is derived from the combination of two words - "petros," which pertains to the petrous part of the temporal bone, and "mastoid," which refers to the mastoid process.
The petrosomastoid muscle is thin and slender in shape, and its fibers run obliquely. It originates from the petrous part of the temporal bone, specifically from the groove that lies between the carotid canal and the jugular fossa. From there, it travels inferiorly and posteriorly to insert into the mastoid process. This muscle plays a crucial role in the movements of the head and neck, particularly in the rotation and extension of the head.
The petrosomastoid muscle is innervated by the accessory nerve (CN XI), which is responsible for controlling various muscles involved in head and neck movements. Anatomical knowledge of the petrosomastoid muscle is essential for healthcare professionals such as anatomists, surgeons, and physical therapists, as it helps in understanding the complexity of the musculoskeletal system and its impact on human physical functions.
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A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PETROSOMASTOID
- oetrosomastoid
- letrosomastoid
- -etrosomastoid
- 0etrosomastoid
- pwtrosomastoid
- pstrosomastoid
- pdtrosomastoid
- prtrosomastoid
- p4trosomastoid
- p3trosomastoid
- perrosomastoid
- pefrosomastoid
- pegrosomastoid
- peyrosomastoid
- pe6rosomastoid
- pe5rosomastoid
- peteosomastoid
- petdosomastoid
- petfosomastoid
- pettosomastoid
Etymology of PETROSOMASTOID
The word "petrosomastoid" is a compound word derived from Greek roots.
The first part, "petro-" comes from the Greek word "petra", meaning "rock" or "stone". This is commonly used in medical terminology to refer to structures related to the temporal bone, which is a dense and hard bone found in the skull.
The second part, "-soma", comes from the Greek word "soma", meaning "body". In this context, it refers to the body of the temporal bone.
The final part, "-stoid", is derived from the Greek word "stoeidēs", which means "like" or "resembling". This is commonly used to describe structures or features in the shape or form of a particular body part.
Therefore, "petrosomastoid" refers to a structure that resembles or is related to the body of the temporal bone.
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