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1 - cremasteric fascia
2 - internal spermatic fascia
3 - testicle's artery
4 - pampiniform plexus
5 - testicle's vaginal sheath
6 - head of epididymis
7 - appendix of epididymis
8 - appendix of a testicle
9 - scrotum skin
10 - testicle
11 - tail of epididymis
12 - subcutaneous cellular tissue
13 - corpus of epididymis
14 - deferent duct
15 - cremasteric muscle
16 - spermatic cord
Source:
Atlas of atonomy by Sinelnikov, Vol.3, page 382
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A testicle (10) is a slightly flat on sides ellipsoid organ. Its length is 3 - 4.5 cm. By touch a testicle should be dense enough. A testicle is situated in a scrotum (9), where it is hanged on a so-called spermatic cord (16). The spermatic cord is a tube with diameter of approximately 1.5 cm. It consists of a lot of elements, such as deferent duct (14), artery (3) and vein of a testicle (the veins form pampiniform plexus (4). The spermatic cord has several sheaths (1, 2), one of which is a muscle vein (a so-called cremasteric muscle (15)). Cremasteric fiber are directed longitudinally on the axis of the spermatic cord. That is why its contraction pulls the testicle closer to a body; while its relaxation removes the testicles farther from a body. There are several auxiliary organs near the testicle, for instance epididymis (6). The function of the epididymis is spermatozoa maturation, produced by the testicle. Spermatozoa stay in the epididymis for approximately one or two weeks, where they acquire enough mobility.
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