xadni'idju lujvo

x1 is medial.

Describes body-parts/regions of the body. A medial region/part is one which is situated in the middle as compared to/between analogous parts/regions (each of which may be distal or proximal); or it may be associated with or located near a midline/midplane/median plane of an organ/region. See also: xadni'arno, xadni'ibni.

In notes:

x1 is distal.
x1 is proximal.