Volltext: The Cyclopaedia of Anatomy and Physiology, vol. 4: Pla [corr.: Ple] - Wri (4)

each other ; or it is even, as Weber found it, 
completely closed. In the same manner 
Gurlt found that the Weberian organ, instead 
of opening by a special aperture, sometimes 
communicated with one or other of the eja¬ 
culatory ducts. The lower end of the tube 
is considerably dilated for a length of 1 to 
3 inches. Above, this dilated part gene¬ 
rally passes into a narrow cylinder, which 
Ruminantia. — In the Llama, which pos¬ 
sesses a heart-shaped parenchymatous pro¬ 
state, I have been unable to find either a 
median, single, opening into the commencement 
of the uro-genital canal, or a Weberian organ. 
But, on the other hand, one finds a very dis¬ 
tinct rudiment in the new-born male deer.* 
Here it courses as a single cord-like thread 
in the peritoneal fold between the two eja- 
Fig. 878. 
Weberian Organ of the Ass (reduced in size.) 
a, a, Vasa deferentia, with the seminal vesicles, b, b; c, Weberian organ. 
sometimes attains a length of 5 to 7 inches, 
and then divides into tw’o short and usually 
unequal horns. Not unfrequently this upper 
part is, as was observed by Leydig and seen by 
myself, a simple solid thread. In the instance 
described by Weber the cavity was altogether 
absent ; and an absence of the whole Webe¬ 
rian organ has been observed by Leydig. 
In the male ass I have also seen a very con- 
derable Weberian organ {fig. 878), the^existence 
of which I was first made aware of by Berg¬ 
mann. It is here a straight canal, four and a 
half inches long, which ascends in the peri¬ 
toneal fold between the two ejaculatory ducts, 
and divides at its extremity into two, much 
wider, horns. These have blind ends, and a 
length on the right side of 5, on the left of 9, 
lines. There is no opening into the uro¬ 
genital canal, but the lower end has a vesi¬ 
cular dilatation of four lines in length, and 
is separated by a longitudinal fold into two 
blind sacs lying close behind each other. 
dilatory ducts until finally it bifurcates at 
about an inch from the place of their inser¬ 
tion. It is only during the earlier stage of 
embryonic life that I have been able to find 
a cavity and its opening: in the new-born in¬ 
dividual the Weberian organ is already ob¬ 
literated and solid. Some larger and smaller 
hydatidous vesicles which are found in its 
course, and especially at the site of its bifur¬ 
cation, are the only relics of this its earlier 
The same form of Weberian organ is re¬ 
peated in the goat ; but its development seems 
here to be very variable. I examined a large 
number of genitals, which had been preserved 
some time in spirit. In all, the Weberian 
organ was of considerable size and develop¬ 
ment. Nevertheless I have reasons for the 
conjecture that this is not the rule, and that 
* See my description in the Göttingische Gelehrte 
Anzeige, 1848, No. 174.


Sehr geehrte Benutzerin, sehr geehrter Benutzer,

aufgrund der aktuellen Entwicklungen in der Webtechnologie, die im Goobi viewer verwendet wird, unterstützt die Software den von Ihnen verwendeten Browser nicht mehr.

Bitte benutzen Sie einen der folgenden Browser, um diese Seite korrekt darstellen zu können.

Vielen Dank für Ihr Verständnis.