Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Animal Reproduction > Quiz 3 > Flashcards

Quiz 3 Flashcards

(58 cards)

Start Studying
1
Q

What 5 systems are affected in the mom during pregnancy?

A 
Reproductive System
Digestion
Metabolism
Cardiovascular
Respiration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

At 90 days of pregnancy in the ewe, the corpus luteum is secreting ___% and the placental unit is secreting ___% of the P4 that can be measured in peripheral blood.

A

50%, 50%

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

What must maintain myometrium in a relaxed state?

A

P4

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

Cardiovascular changes in the mother (8)

A

1.) More blood
2.) Increased cardiac output
3.) Changes in hemodynamics
4.) Increase in contents: RBC’s
5.) Increase in heart rate and blood
pumped out
6.) Decrease in vascular resistance
7.) Blood pressure remains the same
8.) More coagability of the blood

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

Pre-Eclampsia

A
  • Condition in humans with increased blood pressure
  • Can kill mom and baby
  • Only cure is delivery
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Respiratory Changes in the mother: The mother’s respiration rate _____ and she requires _____. The mother’s lung capacity _____.

A
  • Respiration rate increases and she requires more O2

- Lung capacity decreases

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

Changes in Metabolism in the mother (4)
The fast-growing fetus and placenta require _____. Food intake _____. Digestion changes: Ability to _____ more, _____ food passed through. _____ in fat deposition.

A
  • Requires energy
  • Food intake changes.
  • Ability to absorb more, decreased food passed through
  • Increase in fat deposition
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Placenta is a _____ product.

A

Steroidogenic product

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

Simple Diffusion: Is energy required? What’s involved?

A
  • No energy required
  • Oxygen, Lipophilic (fat dissolvable)
  • High to low concentration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Restricted Diffusion: Is energy required? What’s involved?

A
  • No energy required
  • Pore Size
  • Hydrophilic
  • Mamitol
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Facilitated Diffusion: Is energy required? What’s involved?

A
  • *Energy required
  • Carrier protein
  • D-Glucose
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Active Transport: Is energy required? What’s involved?

A
  • Amino Acids- Maternal to fetal

- Moves AGAINST concentration gradient: *Needs energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Receptor Mediated Endocytosis: Is energy required?

A

*Requires Energy

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

What forms the umbilical cord?

A

Amnion wrapping around allantois

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

Apposition

A

Embryo and membrane are expanding into mom

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

Adhesion

A

Attachment of the embryo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

6 layers of separation

A

1) Fetal Endothelium
2) Fetal Connective Tissue
3) Fetal Chorionic Epithelium
4) Maternal Endometrial Epithelium
5) Maternal Connective Tissue
6) Maternal Endothelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Pigs, Cows, and Ewe - layers present?

A

All 6 layers

Epitheliochorial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Dogs and Cats - layers present?

A

4 layers
Endotheliochorial

1) Fetal Endothelium
2) Fetal Connective Tissue
3) Fetal Chorionic Epithelium
6) Maternal Endothelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Humans and Rodents - layers present?

A

3 Layers
Haemochorial

1) Fetal Endothelium
2) Fetal Connective Tissue
3) Fetal Chorionic Epithelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Placentomes: Which parts maternal and fetal?

A

Fetal/Placental cotyledon

Maternal caruncle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Endometrial Cups

A

Produce ECF (FSH like)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

3 extra embryonic membranes

A

Embryo: Inside
Allentois: Vascular
Chorion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Luteal/Placental Shift

Study These Flashcards
A

Placenta making enough P4 to get rid of corpus luteum

25
Luteal/Placental Shift in Ewes
55 days
26
Luteal/Placental Shift in Mares
70 days
27
Luteal/Placental Shift in Women
2 months
28
Luteal/Placental Shift in Cattle
7-8 months
29
Luteal/ Placental Shift in swine
NEVER | Corpus luteum lasts the whole time
30
E2 induces...
-Increase in oxytosin receptors and prostaglandin receptors Myometrium
31
P4 induces...
- Removal of myometrial blocks | - Induces contractions
32
Prostaglandins induce...
- Luteal regression | - Contractions
33
Oxytocin
-Release of PGF2a which causes contractions
34
Estradiol
-Increases secretions to increase lubrication of the birth canal
35
PGF2a
-Corpus luteum or placenta to relaxin
36
In the ewe, PGE2a stimulates secretion of P4 by the corpus luteum. T or F
True
37
During a normal pregancy, maternal blood pressure is significantly increased. T or F
False
38
During parturition, relaxin is secreted from the __________ and it functions to induce relaxation of the _________.
Corpus luteum; myometrium/pelvic ligaments
39
During parturition in the ewe, describe how cortisol affects the maternal placenta.
Cortisol increases: PGF2a (induces CL regression), E2 (which increases OT-R and FP - affects myometrium) Coritsol decreases: P4 --> myometrial block --> increase contractability --> parturition
40
During parturition in the ewe, a neuro-endocrine feedback loop facilitates uterine contractions. Describe.
Increases PGF2a --> Stimulates uterus contractions --> pressure on cervix (leads back up to hyp (OT))
41
During pregnancy, the ability of maternal blood to coagulate decreases. This is believed to be a preventative measure by the body to avoid thrombosis. T or F
False: Blood coagulation increases during pregnancy
42
What hormone increases proliferation of secretory cells?
E2
43
What hormone increases secretions: histotroph, enzymes, energy substrates?
P4
44
What are the 5 ways that nutrients can cross?
1. ) Simple diffusion 2. ) Restricted diffusion 3. ) Facilitated diffusion 4. ) Active transport 5. ) Receptor-mediated endocytosis
45
Cotelydons and caruncles fuse to make _____.
Placentomes
46
Which is avascular? Chorion or Allantois? | Which is vascular?
Chorion - avascular | Allantois - vascular
47
What surrounds/protects the embryo?
Amnion
48
In the ewe, placentation can be considered endotheliochorial. T or F
False - epitheliochorial
49
Identify the tissue responsible for production of eCG and the species of animal producing it.
eCG - Equine endometrial cups
50
What is the role for eCG during early pregnancy?
Acts as FSH, follicular development, luteal, more CL for progesterone
51
Chorion forms from the _____.
Trophectoderm
52
_____ is derived from cavitation of the inner cell mass.
Amnion
53
Fetal connective tissue includes the basement membrane of _____.
Chorion
54
Maternal connective tissue includes the basement membrane of _____.
Endometrium
55
Fetal cortisol acting on placenta: what is the end result?
^ PGF2a ^ E2 Decrease P4
56
Physiological response of P4 decrease:
Contractions of uterus, remove myometrial block to contraction
57
Physiological response of PGF2a ^:
Decrease P4 by regressing CL, uterus contractions
58
Physiological response of E2^:
^ OT-R, ^ FP (PGF2a-R) - myometrium

Animal Reproduction (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions