. La cyclopaedia d'anatomie et physiologie. Anatomie ; physiologie ; Zoologie. Testicule (1012) ANATOMIE ANORMALE. minous dissimuler le gland, empiètent sur le septum et d'étendre à l'autre côté du scrotum. Dans un spécimen que j'ai soigneusement examiné, les navires ont été classés en trois groupes (fig. 655). L'un formé des plus gros navires passe de l'ex- tremity du testicule ; la seconde, dans laquelle les navires étaient d'une taille inférieure, mais plus nombreux- rentes et tortueux, découle de l'ex supérieur- Fig. G55.. tremity du testicule ; tandis que la troisième et la plus petite, entourée et accompagnée de cluster

• Contributeur: The Book Worm / Alamy Banque D'Images
• ID de l’image: RD550W
• Taille du fichier: 7,1 MB (341,6 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 943 x 2649 px | 8 x 22,4 cm | 3,1 x 8,8 inches | 300dpi

Informations supplémentaires

Cette image appartient au domaine public, ce qui signifie que le droit d’auteur a expiré ou que le titulaire du droit d’auteur a renoncé à ses droits. Les frais facturés par Alamy couvrent l’accès à la copie haute résolution de l’image.

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 1012 TESTICLE (ABNORMAL ANATOMY). minous conceal the gland, encroach on the septum, and extend to the other side of the scrotum. In a specimen which I carefully examined, the vessels were arranged in three clusters (fig. 655). One formed of the larger vessels proceeded from the inferior ex- tremity of the testicle ; the second, in which the vessels were less in size, but more numer- ous and tortuous, arose from the upper ex- Fig. G55.. tremity of the testicle ; whilst the third and smallest cluster surrounded and accompanied the vas deferens (1). The dilatation is not con- fined to the veins exterior to the gland : even those in the organ itself are varicose, and enlarged veins may often be distinctly seen ramifying between the tunica vaginalis and tunica alhuginea. The veins occasionally con- tain phlebolites which are lodged in dilatations of the vessels. The veins of the left testicle are more subject to vark-ocele than those of the right. In upwards of 120 operations per- formed by Breschet, in only one instance was the varicocele on the right side.* Pott met whh this disease on both sides of the body in only one instance. The disease, however, is far from being so rare on the right side as is generally supposed, and often exists on both at the same time, although the varicose state of the right spermatic veins is always much less than that ot the left. Of the causes of varicocele, some operate on both sides, others only on one. The most influential of the former is the hydrostatic pressure consequent * Landouzy, Du Varicocele, p. 24. upon the depending position of these veins, which have to support the weight of a column of blood extending from the testicle to the second dorsal vertebra. The absence of valves is mentioned as a circumstance conducing to this disease ; but this is an error, for the larger spermatic veins are always furnished with valves, though the dilatation which takes p

Recherche dans la banque de photos par tags

• bo
• booksubjectphysiology
• booksubjectzoology
• livresubjectanatomy