long axis n.
A line parallel to an object lengthwise, as in the body the imaginary line that runs vertically through the head down to the space between the feet.
The spine is movable in all directions—flexion, extension, lateral flexion, and rotation around the long axis of the column.
The conspicuous mid-brain (29 A, mb) forms the anterior termination of the long axis of the body.
Now, you are pointing so that your hand is parallel with the long axis of the box, and at right angles to the short axis?
The cranial flexure soon becomes very marked, the mid-brain forming the end of the long axis of the embryo (fig. 146).
The coronoid process in Thrinaxodon sweeps upward posterodorsally at an angle oblique to the long axis of the ramus.
The embryonic area is formed in the usual way, and its long axis is placed at right angles to that of the vesicle.
Portions of a room lying in the direction of the long axis of the flame were but poorly lighted.
Often the long axis may be more than twice the length of the short axis.
The least common are the longitudinal, in the long axis of the bone.
In the latter the ccal gastric pouch lies in the long axis of the body, opposite the entrance of the œsophagus.