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2. SUBMITTED TO:
Dr. RIAZ
HUSSAIN PASHA
SUBMITTED BY:
Faizan Awais
11-arid-972
Tahira Mukhtar
11-arid-973
Waqas Nawaz
11-arid-975

3. Systemic Veterinary Histology
Topic
Histological Structure of
AVIAN Female
Reproductive Organs

4. Female Reproductive Tract
o Ovary
o Infundibulum - site of
fertilization
o Magnum - albumin
addition
o Isthmus - membranes
o Uterus - shell gland
o Vagina - transport to
exterior
o Sperm storage occurs at
various sites in tract in some
species

5. Hen's Ovary
o The membrane around it
is the plasma membrane
o The rest of it: the
chalazae, the "white" of
the egg
o The image at top left is of
o The thin membranes
a single cell
lining the shell
o The egg we eat at
o The shell itself lying over
breakfast—any bird's
egg, really—is one cell the true cell
o Products of secretory
o The yolk is a cytoplasmic
mass of lipids activity

6. Hen's Ovary
o At the right above you see
one of the "fingers" of the
hen's ovary
o contains a fair number of
eggs (F) in various stages
of development
o when fertilized, the
o yellow part is developing
here embryo will feed during
development
o Each of the round
structures will become an
egg yolk

8. Follicles
o Isn't anything resembling o At the time of ovulation of
a zona pellucida, a a follicle, a whitish
membrana granulosa, or a area, the stigma, appears
cumulus oophorus here on the surface of the
o Just a bunch of follicles follicle
with yolky eggs o The egg is expelled into
o Get large enough to be the upper end of the
released reproductive tract
o Each follicle is surrounded
by a well developed system
of blood vessels

9. Various Divisions of The Oviduct
 Infundibulum
Ovary
 Magnum Magnum
 Isthmus
 Shell Gland
 Vagina
Shell Gland
Intestine

10. 1) Infundibulum
cilia, as in mammals
o The expanded upper end
is called, as in
mammals, the
infundibulum
o The infundibulum has
fimbriae, finger-like
projections covered with

11. Longitudinal Section of the
Infundibulum
Tunica Mucosa
o quite rugated, and
extensive folds are present
o Contractions of the
muscular oviduct and
body movements help
shove the egg along

12. Fimbriae
o This is a section through
the infundibular part of
the oviduct
o long, slender, finger-like
projections
Epithelium
o ciliated simple columnar
epithelium

13. Ciliation
o The ciliation on the vascularized CT of the
mucosal lining of the underlying lamina
fimbriae is very heavy propria
o The gross arrangement of
the fimbriae and the
beating of the ciliated
epithelium creates a
vortex to pull in the egg
Lamina Propria
o simple nature of the
epithelium and the well

14. 2) Magnum
o longest portion of the o Lamina
system Propria/Submucosa
Tunica Mucosa o enormous glands
o Some of the cells are o vesicles containing the
ciliated and some are not protein secretions waiting
o Epithelium: to be released
o simple cuboidial to
columnar

15. Cont…
o Lumen
o extremely patent
o deep clefts or crypts
o uniform basophilic
staining of the
submucosa is due to the
glands located there

16. At high magnification-Magnum
o Both the lining protein secretion for
epithelium and the export; each of these cells
underlying albumen is packed with rough
glands in the submucosa endoplasmic reticulum
are visible
o Epithelium is stratified
cuboidal to columnar
o Massive glands are
strongly basophilic
because of their role in

17. 3) Isthmus
Tunica Mucosa o produce the soft shell
membranes
o Epithelium:
o simple columnar
o Nuclei-basally located
o Lamina Propria:
o Extensive glands

18. Isthmus Tunica
muscularis
Extensive
glands
In lamina
propria
simple lumen
columnar
Epithelium

19. Cont…
o Organ has deep crypt-like Tunica muscularis
folds and, like the upper o around the outside
regions of the tube o thin at this point
o Strongly basophilic glands
(G) are the source of the
membranes
Tunica Submucosa
o Secretory glands
o Protein secreting
nature_fairly obvious
o not so heavily stained as
those of the magnum

20. 4) Shell Gland
o Shell gland is also named well vascularized CT
as UTERUS supporting the cores
o Shell gland is the last of
the secretory portions of
the oviduct
o Tunica Mucosa
o Epithelium
o Pseudostratified
columnar
o intermittently ciliated
o Mucosa_formed into
deep straight crypts with

21. Uterine wall
LUMEN
B.V ENDOMETRIUM
UTERINE GLANDS
MYOMETRIUM

22. Uterus

23. Cont…
o mucosa and submucosa o crypts are lined with
thrown up into extensive stratified cuboidal
folds, but obviously with a epithelium (Ep)
large and unobstructed
lumen
o Tunica Muscularis
o deeper region
o showing the secretory
area

24. 5) Vagina
o The last portion of the Sperm Storage
tube is the vagina  Mammalian sperm
o Tunica Mucosa remains viable in the
o Epithelium female reproductive tract
o tall columnar epithelium
for a few days at most, and
then only under ideal
o intermittently ciliated
conditions. Even a period
sperm host glands that short may lead to
o simple columnar embarrassing
epithelium consequences, however, at
least in humans

25. Vagina

26. vagina

29. Instead of thinking how to
win, think how you lost last
time.
You will definitely win next
time…