repro P/D/L Flashcards
____ is the physical act of breeding
copulation
in most species, fertilization occurs in the ____. uterine contractions (stimulated by ___) help propel the sperm to this location in minutes
oviducts ; oxytocin
once an ____ becomes fertilized it is called a ___
ovum ; ztgote
implantation is when the ____ embeds itself into the _____
blastocyte ; endometrium
the ___ is known as the life support system
placenta
there are 2 fluid filled sacs around a fetus. the ____ and the ____
amniotic sac and allantoic sac
the ___ is the tube that runs from the cranial top of the fetus’ urinary bladder to the umbillical cord to the ____
urachus ; allantoic sac
_____,_____,____ all have a diffuse placental attachment
pigs, horses, camelids
_____ placental attachment is the most complex type. it has numerous small attachment sites called ____. each of these attachment sites has a ____ on the placenta side and a _____ on the uterine side. _____ have this type of placental attachment site
cotyledonary ; placentome ; cotyledon ; caruncle ; ruminants
cats and dogs have a ____ placental attachment site. this is a simple type of attachment that separates fairly easily
zonary
discoid placental attachments can be found in _______
rabbits / rodents
____ is the period of pregnancy
gestation
cat gestation length
56-69 days - 2 mo
dogs gestation length
59-68 days - 2mo
pigs gestation length
110-116 days or 3 mo, 3 w, 3 dat
cattle gestation length
271 - 291 days. - 9 mo
horses gestation length
321-346 days - 11 mo
the first stage of parturition is the period of ____. the second stage is ______ and the final stage is the ______
uterine contractions ; delivery of the fetus ; passage of the placenta
___ is the name given to the first milk. it is rich in ____ which are essential for full passive immunity
colostrum ; immunoglobulins
amnion layer
immediately around the fetus
allantoic layer
around the amnion
chorion
the outer layer of the placenta
