Freiburger historische Bestände - digital

V

EXPLANATION

OF

PLATE 20.

Sagittal section of the head of the old Elephant „Chang", no. 3. \—\ nat. size. The figure represents the
catoptrical image of the right half of the head. The cut has at the superior end of the vertically descending
part of the nasal cavity been fairly near median, so that of the cartilaginous nasal septum nearly one half was
present on the right side; it has for the greater part been taken away afterwards. The cut nevertheless had
gone a little to the right, so that a little more of the cartilage was on the left half, where also most of the
vomer was present. Further down the cut went a little more to the left, so that the inferior (caudal) end of
the nasal septum was lying in the right half and the whole of the pharyngeal coecum was on the same side
(in the figure it is represented after the left side of it having been taken away).

As to the brain the right hemisphere has been partly grazed by the cut (not posteriorly, where it is intact).

The oesophagus has been opened in its whole length by the cut, which has gone rather much to the left,
so that the trachea was not opened at all and the larynx only grazed and lying almost totally in the figured
„half"; afterwards the left wall of the larynx has been taken away.

Also further forwards the cut has gone much to the left: it is the left half of the tongue and the anterior
end of the left ramus of the mandible which have been sectioned and which have been represented in the
figure, nothing having afterwards been taken away here (a median section of the tongue is given in Plate 39
fig. 5). In the section of the mandible is seen a little of the roots of the anterior end of the molar (the
blue spots).

It should still be noted, that, while most of the cartilaginous nasal septum has been taken away and the
right nasal tube opened, at the point where the sharp flexion of the nasal tube has its place, the septum, which
is here very thick, has been left; a probe has here been introduced into the nasal tube. The anterior cartilaginous
point which is here seen in the figure is a median continuation of the cartilaginous septum; the cartilaginous
nasal wing, which has been hit by the cut in the specimens figured in Plate 18 and 19, has not been
sectioned in this specimen.

Otherwise comp. the Explanations of the Plates 18 and 19.