Female Reproduction Flashcards
estrus
period of receptivity of the female to be bred by the male (heat)
ovulation
the release of an ovum from a follicle
follicle
structure on the ovary that contains the ovum
ovum
egg
estrus cycle
all physiological events that occur from one ovulation to another
T/F the estrus cycle is the same thing as the menstrual cycle
False
oviposition
process of laying an egg
gestation
pregnancy/development of a fetus
incubation
development of the fetus OUTSIDE the body
parturition
birth process
E2
estrogen
P4
progesterone
progesterone is the what hormone?
pregnancy
when does ovulation happen?
right after estrus, right before metestrus
follicle maturation happens when?
during proestrus
P4 is at its peak when?
during diestrus
E2 is at its peak when?
ovulation
exocrine
ovum production
endocrine
produces follicle and corpus luteum
follicle
follicular cells, theca interna
follicular cells
E2, “hormone of estrus”
theca interna
T, testosterone
corpus luteum
P4, progesterone, “hormone of pregnancy”
what is in charge of estrogen?
follicle
what is in charge of progesterone?
corpus luteum
corpus albicans
“scar tissue”
oviduct
transports, site of fertilization, nutrition
uterus
transports, nutrition, site of gestation, endocrine
bicornuate
2 horns (all domestic animals)
cervix
physical barrier to protect uterus
vagina
semen deposition
trophoblast
layer of tissue supplying the embryo with nutrients
order of cell division steps?
zygote, embryo, 2-celled, 4-celled, 8-celled, morula, blastocyst
what attaches to the uterine wall?
blastocyst
what will eventually become the placenta?
blastocoele
placenta
exchange of nutrients/waste, exchange of oxygen and carbon dioxide, hydraulic dampener
what is the function of the hydraulic dampener?
cushions the fetus
parturition
birthing process, cervical dilation, lubrication
four types of placental attachments?
diffuse, zonary, cotyledonary, discoid
what animals have a diffuse placenta?
horses and pigs
what animals have a zonary placenta?
cats and dogs
what animals have a cotyledonary placenta?
cattle, sheep, goats (ruminants)
what animals have a discoid placenta?
humans, primates, rabbits
which placenta is limited to a “zone” or a “middle band”
zonary
which placenta is more of a rounded area?
discoid
placentome
cotyledon and caruncle
cotyledon
placenta
caruncle
uterine wall
T/F for litter-bearing animals, all placentas are separate from one another
true
what is step one in the parturition process?
contractions/cervical dilation
what is step two in the parturition process?
fetus expulsion
what is step three in the parturition process?
fetal membrane expulsion
dystocia
fetus has problems or the cervix is not well dilated
T/F Avian reproductive tracts has a larger modified oviduct
true
which ovary is the only one that develops in a chicken?
left
what is part one of the oviduct in a chicken?
infundibulum
what is part two of the oviduct in a chicken?
magnum
what is part three of the oviduct in a chicken?
isthmus and uterus
what does the infundibulum produce?
albumin (white)
what does the magnum produce?
membranes
what do the isthmus and uterus produce?
shell
T/F chickens have placentas
false