ANSC 3040 QUIZ 4 QUESTIONS AND CORRECT ANSWERS
Progesterone is required for pregnancy survival. In pregnant cows, ewes, and mres, this
hormone is supplied by - Answers - placenta and corpus luteum
non- return to estrus can be used as a sign or indication of pregnancy in all of the
following animals except for
ewe
sow
mare
cow
bitch - Answers - bitch
all of the following are true about fetal growth except for
a-hemotrophic supply of nutrients to the fetus by the placenta becomes less important
towards the end of gestation
b-fetal length increases linearly during gestation
c-dams influence fetal growth through the genetic makeup of the fetus and the
regulation of uterine physiology during pregnancy
d-fetal weight increases exponentially during gestation
e-fetal growth is a result of cell proliferation (hyperplasia) and cell growth (hypertrophy) -
Answers - hemotrophic supply of nutrients to the fetus by the placenta becomes less
important towards the end of gestation
Which of the following animals has zonary endotheliochorial placenta
woman
bitch
mare
all
none - Answers - bitch
what are the two components of the bilaminar embryonic disc - Answers - endoderm
and ectoderm
what is the type of placentation in pigs? - Answers - diffuse, epitheliochorial placenta
all of the following are required for hatching of the blastocyst except for:
a-contractions of the blastocyst
b-production of enzymes by the trophoblast
c-blastocyst growth
d-fluid accumulation in the blastocoele
e-elongation of the conceptus - Answers - elongation of the conceptus
Progesterone is required for pregnancy survival. In pregnant cows, ewes, and mres, this
hormone is supplied by - Answers - placenta and corpus luteum
non- return to estrus can be used as a sign or indication of pregnancy in all of the
following animals except for
ewe
sow
mare
cow
bitch - Answers - bitch
all of the following are true about fetal growth except for
a-hemotrophic supply of nutrients to the fetus by the placenta becomes less important
towards the end of gestation
b-fetal length increases linearly during gestation
c-dams influence fetal growth through the genetic makeup of the fetus and the
regulation of uterine physiology during pregnancy
d-fetal weight increases exponentially during gestation
e-fetal growth is a result of cell proliferation (hyperplasia) and cell growth (hypertrophy) -
Answers - hemotrophic supply of nutrients to the fetus by the placenta becomes less
important towards the end of gestation
Which of the following animals has zonary endotheliochorial placenta
woman
bitch
mare
all
none - Answers - bitch
what are the two components of the bilaminar embryonic disc - Answers - endoderm
and ectoderm
what is the type of placentation in pigs? - Answers - diffuse, epitheliochorial placenta
all of the following are required for hatching of the blastocyst except for:
a-contractions of the blastocyst
b-production of enzymes by the trophoblast
c-blastocyst growth
d-fluid accumulation in the blastocoele
e-elongation of the conceptus - Answers - elongation of the conceptus
