What does midsagittal mean?
Midsagittal is an anatomical adjective meaning situated in the body's central plane or relating to that plane. The midsagittal plane is an imaginary vertical line and plane running from the top of the head through the body's center, dividing it into approximately equal right and left halves. The term is especially common in anatomy, radiology, embryology, and biological description, where a midsagittal section or view shows structures from the side or along the body's midline. It is more specific than 'sagittal,' which refers broadly to an anterior-posterior plane, including planes that are not precisely central. In ordinary conversation, the word is uncommon and usually occurs in technical or educational contexts involving the body.
adjectiveSituated in or relating to the midsagittal plane, the imaginary vertical plane that divides the body into approximately equal right and left halves. It is commonly used in anatomy, medicine, and imaging.
- Relating to or situated in the midsagittal plane, the central vertical plane that divides the body into approximately equal right and left halves.
- Relating to the middle part of the sagittal plane, especially in anatomical imaging or sectional views.
"The MRI provided a clear midsagittal view of the brain."
"The scan showed the lesion in a midsagittal section through the chest."
"Anatomists use the midsagittal plane as a reference for describing the body's symmetry."
Your midsagittal plane is the body's invisible centerline, running from the crown of the head to the feet.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of midsagittal
The adjective combines the prefix 'mid-' with 'sagittal.' The latter comes through French from Latin 'sagittalis,' meaning 'of an arrow,' because the sagittal plane was originally named for its arrow-like orientation. 'Midsagittal' developed in anatomical usage to specify the central plane that divides the body into matching halves. Its related forms include 'sagittal,' 'sagittary,' and the Latin-derived 'sagitta,' meaning 'arrow.'
Related word forms
How midsagittal is actually used
This is a specialized anatomical term, most often used in medical and biological contexts. It is more precise than 'sagittal,' which can refer to any plane running from front to back.
Easily confused with midsagittal
Sagittal refers to an anterior-posterior plane more generally, whereas midsagittal specifically describes the plane dividing the body into equal right and left halves.