Lab 8 - Female Reproduction Flashcards
what does the broad ligament do
suspends the reproductive system
what does the vagina do
receives the penis during copulation
passageway during parturition
what does the cervix do
controls access to and from uterus
what is the uterus the site of
implantation and placentation
what does the uterus do
contain fetus during pregnancy
expel fetus during parturition
3 structures of the uterus
perimetrium
myometrium
endometrium
what is the perimetrium
connective tissue layer of uterus
what is the myometrium
the muscular layer of uterus
what is the endometrium
epithelial layer (lining) of uterus
what is the placenta
fetomaternal organ
what is the fetal part of the placenta derived from
the chorionic sac
what is the maternal part of the placenta derived from
the endometrium
what are the functions of the placenta
protection
nutrition
respiration
excretion
hormone production
what do the placenta and umbilical cord make up
transport system for substances between mother and fetus
what do ruminants contain
placentome
what is the placentome
caruncle and cotyledon
what is the caruncle
maternal side of the placenta
what is the cotyledon
the fetal side of the placenta
what is the oviduct the site of
fertilization
what does the oviduct do
transports oocyte to the uterus
where is the site of fertilization
the ampullary-isthmus junction
how lung does fertilization take
15-18 hours
what captures the oocyte
ciliated epithelium
what happens in the ovary
oocyte maturation and folliculogensis
what are ovaries the source of
sex steroids
in males, where does the blood supply come from
periphery - tunic albuginea
in females, where does the blood supply come from
the inside (medulla)
where does spermatogenesis occur in males
on the inside (seminiferous tubules)
where does folliculogenesis occur in females
on the periphery (cortex)
what is unique about horse ovaries
they are inside out
how are primordial follicles organized
in clusters (cysts)
what are primordial follicles surrounded by
squamous granuloma cells
do primordial follicles proliferate
no
characteristics of primary follicles
cysts break down
oocytes are surrounded by layer of cuboidal granulose cells
formation of the zona pelucida
irreversible
where is the zona pelucida formed
primary follicles
characteristics of secondary follicles
granulosa cell proliferation
formation of theca layers (interna and externa)
blood vessels develop in the theca
where are theca layers formulated
secondary follicles
what happens in tertiary (developing antral) follicles
formulation of the antrum
granulosa and theca cells multiply
what is the antrum
a fluid filled cavity
characteristics of the theca externa
muscular
innervated
what does theca interna produce
androgens under the control of LH
what do granulosa cells do
convert androgens to E2
what do preovulatoru (dominant/antral/Graafian) follicles do
preparation for ovulation
how long does ovulation take
less than 2 minutes
what is the corpus hemorrhagicum
temporary structure formed immediately after ovulation
filled with blood that quickly clots
what does corpus luteum
high levels of progesterone
what happens when fertilization occurs
progesterone secretion continues to maintain the thick endometrium
what happens when fertilization does not occur
secretion of progesterone stops –> corpus albicans
