Page 484 - Anatomy and Physiology of Farm Animals, 8th Edition

Anatomy of the Female Reproductive System / 469

appears to take an active part in ovulation, The uterine tube, like the entire genital
tract, is invested externally with perito-
at least to the extent of partially or com-
VetBooks.ir pletely enclosing the ovary and directing neum, which reflects off the organ as a sus-
pending mesentery. The portion supporting
the ovum into the uterine tube.
The lining of the uterine tube is a much‐ the uterine tube is the mesosalpinx.
folded mucous membrane covered pri-
marily with a simple columnar ciliated
epithelium (Fig. 26‐4B). During estrus Uterus
(period of sexual receptivity), the unciliated
cells become actively secretory. The rest of The uterus of the domestic mammal con-
the wall of the uterine tube includes a con- sists of a body, a cervix (neck), and two
nective tissue submucosa and a muscular horns (Fig. 26‐1). The relative proportions
layer of smooth muscle. Both cilia and mus- of each vary considerably with the species,
cles function in the movement of ova and as do the shape and arrangement of the
possibly in the movement of spermatozoa. horns (Figs. 26‐5 and 26‐6).

1
1

2
2
5
5 4
3
4 3

6
6

Mare
1 Cow

1
2
5
5
4 3 4 2
3

6 6

Sow
Bitch
Figure 26‐5. Comparative shapes of animal uteri. The female dog (bitch) is provided for comparison.
1, uterine horn; 2, uterine body; 3, cervix; 4, urinary bladder; 5, ureter; 6, clitoris. Source: Reece, 2015.
Reproduced with permission of John Wiley & Sons, Inc.