sagittal
Học thuậtThân thiện
Definition
- Adjective:
- Located in a plane that is parallel to the central plane of the sagittal suture: This is a specific anatomical term describing a vertical plane that divides the body into left and right portions. The "sagittal suture" is the joint between the two parietal bones of the skull.
Usage
The word "sagittal" is used almost exclusively in technical, medical, and anatomical contexts to describe orientation, sections, or planes within a body or structure. It is a precise descriptor for location and direction.
Examples
- Adjective:
- The MRI scan shows a clear sagittal section of the brain.
- The surgeon made a sagittal incision along the midline of the scalp.
- Movement in the sagittal plane includes flexion and extension, like bending the elbow.
Advanced Usage
- Midsagittal (or Median) Plane: This is the specific sagittal plane that runs directly down the midline of the body, dividing it into equal left and right halves.
- The heart is located close to the midsagittal plane.
- Parasagittal Plane: Any sagittal plane that is parallel to but not on the midline, dividing the body into unequal left and right portions.
- The tumor was visible in a parasagittal section of the liver.
Variants and Related Words
- Sagittally (adverb): In a sagittal direction or along a sagittal plane.
- The bone was cut sagittally for examination.
- Sagittal Suture (noun phrase): The specific fibrous joint in the skull from which the anatomical term is derived.
Synonyms
- Longitudinal (in a general sense, but less precise; "longitudinal" can refer to any lengthwise direction, not necessarily the midline division implied by "sagittal").
Antonyms
- Coronal (or Frontal): Referring to a plane that divides the body into front (anterior) and back (posterior) portions.
- Transverse (or Axial): Referring to a plane that divides the body into upper (superior) and lower (inferior) portions.
Adjective
- located in a plane that is parallel to the central plane of the sagittal suture