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Stages of follicular development (5):
- Primordial follicle
- Primary Follicle
- Secondary Follicle
- Late Secondary Follicle
- Mature/Graafian Follicle
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Epithelium of Primordial follicle:
*Simple Squamous
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Epithelium of Primary follicle:
*Simple Cuboidal
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Epithelium of Secondary:
*Stratified Epithelium= Granulosa cells (stratified, polyhedral follicular cells)
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Which Cells Secretes Zona Pellucida
*Granulosa Cells (in secondary Follicle)
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Late Secondary follicle is composed of (4):
- Primary Oocyte
- Zona Pellucida
- Granulosa Cells
- Theca Cells
- *
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Mature Follicle is composed of (7)
- Primary/Seconday Oocyte
- Zona Pellucida
- Corona Radiata
- Cumulus Oophorus
- Antrum
- Theca Interna
- Theca Externa
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Theca Interna cells are composed of (3):
- *(similar to steroid secreting cells)
- *lipid droplets
- +sER
- +Mitochondria
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Theca Externa consists of (2):
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What induces ovulation (2)
- *LH (from Ant Pit)
- Pressure from Antal Fluid
-
Follicles that don't rupture
Atretic Follicles
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Fibrous scar resulting from atratic follicles
*Corpus Atreticum
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Species differences in Mare's ovary (2):
- Ovulation Fossa (indentation= single site for ovulation)
- Follicle Develops in Medulla while cortex has CT
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Two exterior layers of Ovary:
- Low Cuboidal Surface Epithelium
- Tunica Albuginea
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After ovulation, the follicle -> ___ -> ___ -> ____
- C. Hemorrhagicum
- C. Luteum
- C. Albican
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Hormones produced by ovary (2):
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Large Luteal Cells are produced by:
Granulosa Cells
-
Small Luteal Cells are produced by
Theca Cells
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Luteal Cells =>
Progesterone
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Corpus Hemorrhagicum-
Ruptured follicle (blood in antrum)
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Luteinization-
Process by which granulosa and theca cells -> luteal cells
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Corpus Albicans
An unfertilized CL that degenerates and is replaced by CT
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Corpus Atreticum
Follicle that regresses before maturation is complete
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Species Difference in Mare
- Follicles in medulla/CT in cortex
- Ovulation Fossa
- Accessory Corpus Luteum
- Endometrial Cups
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Layers of the Uterine Tube/Oviduct (4):
- Mucosa
- Propra-Submucosa
- Tunica Muscularis
- Tunica Serosa
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Layers of the uterus (in-out)
- Endometrium
- Myometrium
- Perimetrium*
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Epithelium of Endometrium
*Simple Columnar
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Primary epithelium of F repro organs
Simple Columnar
-
Two exceptions of female repro epithelium
(those that are not simple columnar)
- Infundibulum= Pseudostratified
- Vagina= Stratified Squamous
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Caruncles-
Nonglandular thickenings of the endometrium *
-
Caruncles are found in
Ruminants*
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Relative to the ureter, the uterine tube has more ____ and less ____
- more folding (lots!)
- less muscle
-
Layers of the Uterine Horn
- Endometrium (mucosa+submucosa)
- Myometrium (muscularis)
- Perimetrium (serosa)
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Myometrium (of the uterine horn) consists of (3):
- Inner circular muscle
- Stratum Vasculare
- Outter Longitudinal
- (++ stretching)
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Nonglandular parts of uterine horn
Caruncles
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Caruncles are a thickening of the _____
endometrium (mucosa-submucosa)
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The endometrium of mares contains _____
Endometrial cups
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Endometrial Cups contain...
lots of glands (provides ++ nutrients)
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Cervical Seal is formed by
Mucous secreted by mucigenic and goblet cells *
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Elastic fibers are abundent in the ____ to reestablish shape after parturition
cervix
-
Vaginal goblet cells are found in whch species?
bovines
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An additional layer of vaginal longitudinal muscle is found in which species (2)?
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Exterior layer of vagina changes from ___ to ____ (cranial to caudel)
- cranial= serosa
- caudel= adventitia
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The vagina is demarcated as the area btw. the ___ and ___
-
Difference btw the vestibule and caudel vagina
vestibule has more subepithelial lymphatic nodules
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Bulbus Vestibuli is present in
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Glands in the propria submucosa of the vestibule
Vestibular Glands
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The clitoris is homologus to the male ___
penis
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the labia forms the ___
vulva
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What occurs during Proestrus (3)?
- Follicular Growth
- Endometrial Proliferation
- Vascularization
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What occurs during Estrus (3)?
- Ovulation
- Endometrial Proliferation
- Edema
-
What occurs during Metestrus (2)?
- Development of Corpus Luteum
- Endometrial Gland Hyperplasia
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If fertilization occurs, ___ follows
If no fertilization, ____ follows
- Fertilization=> Diestrus
- No Fertilization => CL regresses-> Corpus Albicans
-
What occurs during Diestrus (3)?
- (after fertilization)
- Progesterone takes control of CL
- Hyperplasia of endometrial gland
- Increased secretion
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Follicular stages during Proestrus (4):
- Primordial
- Primary
- Secondary
- Late Secondary
-
Compared to mammals, avian ovarie are...
less compact *
-
Avian Oviduct consists of (5):
- Infundibulum
- Magnum
- Isthmus
- Uterus
- Vagina *
-
-
AvianvInfundibulum is characterized by (2):
- Highly folded mucosa
- Pseudostrat Ciliated Epi*
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Epithelium of the Magnum
+/- Ciliated, columnar *
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Epithelium of the isthmus
+/- Ciliated, columnar *
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