Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AVS 222 > Quiz 10 > Flashcards

Quiz 10 Flashcards

1
Q

The functional unit go the fetal placenta is the Chorionic villi. Based on the Chorionic villi distribution fetal placenta can be classified in four different kinds. Name them and provide one species example.

A

Diffuse - Horse
Cotyledonary - Cow
Discoid - Human
Zonary - Dog

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What kind of placenta do primates and rodents have (based on placenta layers) and how many tissue layers do separate the maternal blood from the fetal blood?

A

hemochorial - 3 layers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Length of gestation in Cows?

A

283 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Length of gestation in Sheep?

A

150 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Length of gestation in Humans?

A

9 months

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Placental Type (based on placental layers) in Cows?

A

epitheliochordial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Placental Type (based on placental layers) in Sheep?

A

epitheliochordial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Placental Type (based on placental layers) in Humans?

A

hemochordial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the main function of eCG and hCG? What do e and h stand for?

A

Maintenance of the CL and can tell pregnancy
e - equine
h - human

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Name three hormones that are produced by the placenta and what is their function?

A

Progesterone - maintenance of pregnancy, stops myometrium contractions
placental lactogen - fetal growth, mammary gland growth, and lactation
Pregnancy specific protein B - allows for ability to test if pregnant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

During parturition Elevated cortisol promotes the synthesis of 3 enzymes that convert progesterone to estradiol. What are they?

A

Aromatase
17-20 lyase
17 alpha hydroxylase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

As fetus becomes stressed, starts to release _____ from the _____ gland. This hormone in turn stimulates _____ to secrete cortisol. The functions of fetal cortisol include decrease in _____ blood concentration and increase in (a)_____ and (b)_____ concentrations. The latter hormone (b) is important for the fetal ligament.

A 
ACTH
Anterior Pituitary 
Adrenal Gland 
Progesterone 
Estradiol
Relaxin
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name three potential ways by which we can induce parturition in cattle?

A

stress the cow
give a shot of cortisol
give a shot of PGF2alpha

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Placental Type (based on placental layers) in Dogs.

A

endothelialchorial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Placental Type (based on Chorionic Villi) in Cows.

A

Cotyledonary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Placental Type (based on Chorionic Villi) in Mares.

A

Diffuse

17
Q

Placental Type (based on Chorionic Villi) in Dogs.

A

Zonary

18
Q

Placental Type (based on placental layers) in Mares.

A

epitheliochorial

19
Q

_____ and _____ are transported by facilitated diffusion.

A

Glucose

Amino Acids

20
Q

True or False

eCG and hCG can act as luteolytic hormones in humans and mares

A

false

21
Q

_____ and _____ do not cross the placenta.

A

Large proteins

Vitamins ADEK

22
Q

Parturition occurs in three distinct stages. They are _____, _____, and _____.

A

Myometrial contractions
Fetal expulsion
Placental expulsion

AVS 222 (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions