sagittal axis n.
The optic axis.
The line around which the working condyle rotates in the frontal plane during mandibular movement.
The pores are so disposed in meridional rows that the crests between the rows converge towards the two poles of the sagittal axis.
Two similar straight conical horns are opposed on the poles of the sagittal axis, and arise from the apex of the two valves.
Basal ring also violin-shaped, in the sagittal axis constricted.
Usually the main-axis is the longest, the frontal axis the shortest, and between both the sagittal axis.
The two former arise in the principal axis, the two latter in the sagittal axis of the body.
Here either on one pole or on poles of the sagittal axis a horn is developed, usually curved backwards.