Page 460 - Anatomy and Physiology of Farm Animals, 8th Edition

Anatomy of the Male Reproductive System / 445

Lumen of
seminiferous
VetBooks.ir tubules

Spermatozoa
Spermatids
Spermatocyte

Sertoli
cell nucleus Adluminal
compartment
Sertoli cells
Basal junction
Basal
Spermatogonium compartment
Basement
membrane
Interstitial
space
Leydig cells
Figure 24-4. Cells of the seminiferous tubule. Sertoli cells surround and support developing spermato-
zoa. Source: Reece, 2015. Reproduced with permission of John Wiley & Sons, Inc.

The most
advanced stage
of the three
tubules in this Sertoli cell
image
Primary
spermatocyte

Interstitial cells Late spermatid
Early spermatid

Figure 24-5. Stages of spermatogenesis visible in the seminiferous tubules of a boar testicle. Source:
image courtesy of Library of Reproduction Images (LORI: http://lorimainsection.blogspot.ca).
the neurovascular parts of the cord. As the animals becomes the uterus, the uterus
two ductus deferentia approach the ure- masculinus, is present in the genital fold
thra, they approach one another and con- between the two ductus deferentia.
tinue caudad between the rectum and
urinary bladder, enclosed in a fold of peri-
toneum, the genital fold. The genital fold Scrotum
is embryologically homologous to the
broad ligament suspending the uterus in The scrotum is a cutaneous sac that
females. In some male animals, a vestigial conforms in size and shape to the testes it
homologue of the tubes that in female contains. The scrotal skin is thin, pliable,