Quiz 6

Question 1

Allantochorion

Answer 1

A placental membrane formed by fusion of the allantois and chorion. When the chorion becomes vascularized by the allantois then this compound layer is designated allantochorion or chorioallantoic membrane

Question 2

Allantois

Answer 2

At extraembryonic membrane formed from the embryo; it fuses to the chorion and serves as a receptacle for fetal urine

Question 3

Amnion

Answer 3

A thin membrane which forms a closed sac around the embryo. It contains the amniotic fluid in which the embryo is immersed

Question 4

Caruncle

Answer 4

Maternal sites for attachment of the fetal cotyledons form half of a placentome

Question 5

Colostrum

Answer 5

The fluid usually only secreted by the mammary gland shortly after parturition and is important for passive immunity of the neonate

Question 6

Endometritis

Answer 6

Inflammation of the uterine mucous membrane

Question 7

Eutherian mammal

Answer 7

Mammals that develop a placenta

Question 8

Involution

Answer 8

The return of a tissue to its normal size

Question 9

Lactational anestrus

Answer 9

Lack of estrous or menstral cycles due to suckling or the presence of young

Question 10

Metritis

Answer 10

Inflammation of the uterus

Question 11

Multiparous

Answer 11

A mammal which has had two or more pregnancies that resulted in viable offspring

Question 12

Neonatal

Answer 12

Pertaining to the first few weeks after birth

Question 13

Nulliparous

Answer 13

Having never given birth to viable young

Question 14

Parity

Answer 14

The condition of a female mammal with regard to her having borne young

Question 15

Parturition

Answer 15

The act or process of giving birth to young

Question 16

Peristalisis

Answer 16

A wave of contraction passing a long certain tubular organs that possess longitudinal and circular muscle layer

Question 17

Placentome

Answer 17

Made of a caruncle and cotyledon location of nutrient/gas/waste exchange between fetus and dam

Question 18

Primiparous

Answer 18

Bearing or having borne only one young or set of young

Question 19

Pueperium

Answer 19

The period from paturition to the resumption of normal estrous cycles

Question 20

Seasonal anestrus

Answer 20

The period of anestrus that is induced by long (sheep) or short (horses) photoperiod

Question 21

Pyometra

Answer 21

An accumulation of pus w/in the uterus

Question 22

Vomeronasal organ

Answer 22

An olfactory organ that is believed to be associated w/ detection of pheromones

Question 23

What develops after fertilization then fuse together

Answer 23

The male and female pronuclei

Question 24

What part of the blastocyte forms the embryo

Answer 24

The inner cell mass

Question 25

What part of the blastocyst forms the placenta

Answer 25

The trophoblast

Question 26

When can you call an early embryo a zygote

Answer 26

After the male and female pronuclei fuse together

Question 27

What is a luteotrophic signal

Answer 27

Something that supports the CL

Question 28

What is an antiluteolytic signal

Answer 28

Something that prevents PGF2 alpha from affecting the CL

Question 29

What are the three maternal recognition factors of mice and rats

Answer 29

Spines in the rat penis, placental lactogen 1, and placental lactogen 2

Question 30

What is the luteotropic effect

Answer 30

The production of prolactin hormone that is stimulated by the spines in the penis of rat and mice

Question 31

What is the recognition of pregnancy in humans

Answer 31

hCG production

Question 32

How is PGF2 alpha transported to the ovary

Answer 32

It is transported by the uterine vein that spirals around the ovary artery absorbing the PGF2 alpha

Question 33

What happens to PGF2alpha when a sow is pregnant

Answer 33

It gets redirected to the lumen keeping it from moving to the ovary

Question 34

How long is the CL required to be present on the ovary during pregnancy

Answer 34

The first 60 days then the placental supplies the progesterone

Question 35

How many phases of estrogen release occur in pigs

Answer 35

Two

Question 36

What species requires the CL to be presence on the ovary throughout the pregnancy

Answer 36

Pigs

Question 37

What prevents PGF2alpha production in the sheep

Answer 37

Having an embryo in the uterus

Question 38

What is the role of interferon tau

Answer 38

Blocks up regulation of estrogen receptor in uterine epithelium leading to no oxytocin receptor increase

Question 39

What secretes interferone tau

Answer 39

The fetus