nasion /na·si·on/ (na´ze-on) the middle point of the frontonasal suture.
nasion
nasion (nā´zēon),
na·si·on (n  z - n )n. The point on the skull corresponding to the middle of the nasofrontal suture. Also called nasal point. |
nasion
[nā′zē·on]
Etymology: L, nasus, nose
1 the anthropometric reference point at the front of the skull where the midsagittal plane intersects a horizontal line tangential to the highest points in the superior palpebral sulci.
2 the depression at the root of the nose that indicates the junction of the intranasal and the frontonasal sutures.
nasion (nā´zēon),
n the point at the root of the nose that is intersected by the median sagittal plane. The root of the nose corresponds to the nasofrontal suture, which is not necessarily the lowest point on its dorsum and which can usually be located with the finger.
nasion
a landmark found at the middle point of the frontonasal suture.
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