From Embryology

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Fig. 448. Testicular descent

Schema. (With changes to Tillaux.)

It shows the emergence of the lamina parietalis of the tunica vaginalis propria at the entrance of the testis into the inguinal canal. The descended testis obtained at the entrance to the inguinal canal, a second coating, the first representing a wide pocket that surrounds him, but later than close and lamina is called the parietal tunica vaginalis propria. The protuberance of the Peritoneum is: processus vaginalis peritonaei. The testicle is in this Figure shows how he gets close to the protuberance of the inguinal canal abdominal inguinal canal to the Apertura and the associated Evagination of the peritoneum is reached. One point of the testis is never from the peritoneum covered, where the blood vessels leak and off.

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Images from - Atlas of the Development of Man (Volume 2)

(Handatlas der entwicklungsgeschichte des menschen)

Kollmann Atlas 2: Gastrointestinal | Respiratory | Urogenital | Cardiovascular | Neural | Integumentary | Smell | Vision | Hearing | Kollmann Atlas 1 | Kollmann Atlas 2 | Julius Kollmann
Links: Julius Kollman | Atlas Vol.1 | Atlas Vol.2 | Embryology History
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Kollmann JKE. Atlas of the Development of Man (Handatlas der entwicklungsgeschichte des menschen). (1907) Vol.1 and Vol. 2. Jena, Gustav Fischer. (1898).

Cite this page: Hill, M.A. (2024, March 4) Embryology Kollmann448.jpg. Retrieved from

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Fig. 448. Descensus testicuionim.

Schema. (Mit Änderungen nach Tillaux.)

Es zeigt die Entstehung der Lamina parietalis der Tunica vaginalis propria bei dem Eintritt des Hodens in den Leistenkanal. Der herabgestiegene Hoden erhält bei dem Eintritt in den Leistenkanal einen zweiten Überzug, der anfangs eine weite Tasche darstellt, die ihn aber später enge umschließt und als Lamina parietalis der Tunica vaginalis propria bezeichnet wird. Die Ausstülpung des Peritoneums heißt: Processus vaginalis peritonaei. Der Hoden ist in dieser Abbildung dargestellt, wie er in die Nähe der Ausstülpung des Leistenkanales an der Apertura canalis inguinalis abdominalis und an der damit verbundenen Ausstülpung des Peritoneums angelangt ist. Eine Stelle des Hodens wird nie vom Peritonaeum überzogen, dort, wo die Gefäße ein- und austreten.

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