Reproductive Physiology Flashcards Preview

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Flashcards in Reproductive Physiology Deck (72)
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1

_________ placentas have a cotyledon and placentome

Cotyledonary placentas have a cotyledon and placentome

2

_____ anestrus is due to insufficient hormonal stimuli

True anestrus is due to insufficient hormonal stimuli

3

Reproductive hormone(s) produced by the placenta

Progesterone

Estradiol

hCG/ eCG

Oxytocin

Prostaglandin F2-Alpha

4

Before sperm can bind to zona pellucida they must undergo ___________.

Before sperm can bind to zona pellucida they must undergo Capacitation.

5

Phases of differentiation of sperm

Golgi Phase

Cap Phase

Acrosome Phase

Maturation Phase

6

Species that are considered spontaneous ovulators

Cow

Sow

Mare

Humans

7

________ placentas have band like zone of chorionic villi

Zonary placentas have band like zone of chorionic villi

8

T/F: T4, T3 and Catecholamines cannont pass through placentas

False.  They can pass through placentas with some difficulty

9

________: not displaying signs of estrus

Anestrus: not displaying signs of estrus

10

Species with Epitheliochorial placentas

Sow

Mare

Ruminants

11

____________ induces embryo growth and maintains pregnancy; secretes progesterone.

Corpus Luteum induces embryo growth and maintains pregnancy; secretes progesterone.

12

_________ of sperm generation involves the transition of spermatogonia to spermatocytes.

Proliferation of sperm generation involves the transition of spermatogonia to spermatocytes.

13

__________: bind to receptor but weak to no biological effect like that of native hormone.

Antagonist: bind to receptor but weak to no biological effect like that of native hormone.

14

___________ placental unit with abundant blood vessels and connective tissue.

Cotyledon placental unit with abundant blood vessels and connective tissue.

15

Reproduction is regulated by coordination between the _______ system and __________ system.

Reproduction is regulated by coordination between the nervous system and endocrine system.

16

Reproductive hormone(s) produced by the hypothalamus

GnRH

17

_________ occurs at the spermatocyte stage of sperm production.

Meiosis occurs at the spermatocyte stage of sperm production.

18

Reproductive hormone(s) produced by the Testis

Testosterone

Inhibin

Estradiol

 

19

What are the components of a receptor

Extracellular domain

Transmembrane domain

Intracellular domain

20

________ peaks at ovulation (end of the follicular phase)

Estradiol peaks at ovulation (end of the follicular phase)

21

________: bind to specific receptor and have the same biological response as native hormone.

Agonist : bind to specific receptor and have the same biological response as native hormone.

22

__________ placentas have regionalized disc of chorionic villi

Discoid placentas have regionalized disc of chorionic villi

23

____________ : physiological organic substance produced by specialized cells and released into circulatory blood for transport to target tissues to stimulate or inhibit funcion

Hormone : Physiological organic substance produced by specialized cells and released into circulatory blood for transport to target tissues to stimulate or inhibit funcion

24

Immunoglobulins can pass only through ______________ placentas.

Immunoglobulins can pass only through endochorial placentas.

25

Long day breeders cycle in the ________.

Long day breeders cycle in the spring.

__________________

Mare

26

Stage of Estrous Cycle: ________

Sexual Receptivity

Ovulation occurs at the end

Lutenization of theca and granulosa cells

Decreased rectal and vaginal temperature

Increased [Estradiol] induces increased LH

Increased FSH

Stage of Estrous Cycle: Estrus

Sexual Receptivity

Ovulation occurs at the end

Lutenization of theca and granulosa cells

Decreased rectal and vaginal temperature

Increased [Estradiol] induces increased LH

Increased FSH

27

Species with Cotyledonary placentas

Cow

Sheep

Goat

28

Short day breeders cycle in the _________.

Short day breeders cycle in the fall.

______________

Ewe

29

__________ secreted by the placenta act to stimulate fetal growth

Placental Lactogens secreted by the placenta act to stimulate fetal growth

30

_______: process to reach reproductive competences

Puberty: process to reach reproductive competences