Flashcards in Lecture 03/Lab 1: Female Repro Histology (Baekey) Deck (52):
tunica albuginea is composed of what tissue?
dense irregular connective tissue
where do follicles develop?
cortex of ovary
what kind of tissue and what is contained in the medulla of ovary?
vessels and nerves contained in loose connective tissue
4 main layers of the ovary
1) surface epithelium
2) tunica albuginea
embryonic remnants equivalent to rete testis
hilus cells in ovary produce what?
Where is the medulla in horses?
on the outside of the ovary
what kind and how many layers of cells in primordial follicle?
1 layer of SQUAMOUS follicular cells
What kind and how many layers of cells in primary follicles?
1 layer of CUBOIDAL follicular cells
what kind and how many layers of cell in secondary follicles?
multiple layers of GRANULOSA cells
fx of zona pellucida
binds spermatozoa and is necessary for acrosomal reaction
connect membrana granulosa to oocyte in developing follicles (usually tertiary)
Difference b/w secondary and tertiary follicles
tertiary has follicular fluid formed from granulosa cells, forming an antrum
3 kinds of cells granulosa cells differentiate into in tertiary follicles (less important)
1) columnar corona radiata (adjacent to zona pellucida)
2) cumulus cells (surrounds corona)
3) membrana granulosa (lines follicular wall)
theca interna composed of (less important)
epitheliod steroidogenic cells, blood, lymph capillaries
theca externa composed of: (less important)
site of rupture during ovulation
what does rupture of follicle release?
oocyte, zona pellucida, corona radiata, cumulus
precursor to CL after ovulation occurs.
-fills with blood, capillaries invade
-granulosa cells become granulosa lutein cells
-theca interna cells become theca lutein cells
-transition to endocrine gland which produces progesterone
hypertrophy, hyperplasia, and accumulation of lipid pigment in CL
What happens to CL if pregnancy occurs?
enlarges then degrades to corpus albicans after parturition
What happens to CL if pregnancy doesn't occur?
degenerates and is invaded by connective tissue
atretic follicle. Forms from follicles that fail to complete development.
-zona pellucida thickens and folds
-invasion of connective tissue
-luteinization of theca interna
size of lumen in ampulla vs. isthmus
larger in ampulla
type of epithelium in ampulla
muscularis in ampulla vs. isthmus
thicker in isthmus
type of epithelium in isthmus
predominantly secretory cells, some ciliated epithelium.
type of uterus in marsupials
duples (two independent uteri)
tunica mucosa in uterus =
tunica muscularis in uterus =
tunica serosa in uterus =
Estrogen and progesterone high or low in estrous?
Estrogen high, progesterone low
Estrogen and progesterone high or low in metestrous/diestrous?
Estrogen low, progesterone high
In which stage of estrus cycle is glandular tissue in uterus the most prolific?
Estrogen and progesterone low or high in anestrous?
In which stage of estrus cycle is glandular tissue in uterus LEAST prolific?
nondeciduate placenta and species with it
-fetal trophoblast tissue interdigitates with maternal tissue but does not invade it
-maternal tissue NOT lost at parturition
-Ruminants, horses, sheep, pigs
-Fetal tissue invades maternal tissue
-Maternal tissue lost at parturition
valve-like entrance that safeguards the uterus; open during estrus and parturition
Type of epithelium in estrus vs. anestrus vagina?
estrus: cornified stratified squamous
anestrus: non-cornified stratified squamous
Epithelium lining alveolar ducts in active mammary gland
simple cuboidal or columnar ep.
Merocrine secretions from mammary gland contain
Apocrine secretions from mammary gland contains
Holocrine secretions from mammary gland contains
secretory cells, macrophages, leukocytes
Total # mammary glands in goat/sheep/guinea pig
#mammary glands in cattle
# mammary glands in cat
# mammary glands in dog
8 or 10
# mammary glands in mouse
# mammary glands in rat
# mammary glands in pig