. The anatomy of the human body. Human anatomy; Anatomy. 450 SPLANCHNOLOGY The internal surface of the tunica albuginea is in immediate relation with the proper Fig. substance of the testicle, and is connected with it by a great num- ber of vascular filaments, which traverse it in all directions, and divide it into small masses or lobules, and also by the extension of the substance of the gland itself into oblique culs-de-sac, or cells formed by the tunica albuginea, several of which are a line and a half or two hues deep. When the tunica albuginea is carefully re- moved, filaments of th
. The anatomy of the human body. Human anatomy; Anatomy. 450 SPLANCHNOLOGY The internal surface of the tunica albuginea is in immediate relation with the proper Fig. substance of the testicle, and is connected with it by a great num- ber of vascular filaments, which traverse it in all directions, and divide it into small masses or lobules, and also by the extension of the substance of the gland itself into oblique culs-de-sac, or cells formed by the tunica albuginea, several of which are a line and a half or two hues deep. When the tunica albuginea is carefully re- moved, filaments of the glandular substance are seen escaping from these small cells, n'b'ch are most numerous at the upper borders of the testicle. The strength of the vascular filaments which trav- erse the testicle has led to the opinion that they are all enveloped U by a fibrous sheath derived from the tunica albuginea, but I have never been satisfied of the existence of these sheaths.* At the upper border of the testicle, the tunica albuginea becomes remarkably thickened, and forms the corpus Highmori, or medias- tinum testis (Cooper). In order to obtain a correct notion of this structure, it is necessary to make a vertical section of the testicle at right angles with its long diameter : we then observe a nucleus {i,Jig. 183), or fibrous thickening of a triangular shape, perforated by bloodvessels, but do not at first sight dis- cover any canals in it; so that we might be inclined to agree with Winslow (who called it the nucleus of the testis) in denying that it contains any canals ; or, rather, with Swam- merdam, in regarding those canals that do exist in it as destined exclusively for the ar- teries and veins. If, after dividing the testicle along its convex border, we reflect the tunica albuginea, we shall see that near the upper border the filaments (a a, fig. 184) which constitute the substance of the testicle enter (bb) numerous spaces existing in the tunica albuginea at this part, pass t
Size: 1222px × 2044px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
