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ANS 327 Reproduction > quiz 3 > Flashcards

quiz 3 Flashcards

1
Q

define pre-ovulatory follicle

A

a follicle with granulosa cells lining the antrium

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2
Q

what do the basement cells seperate

A

granulosal and theca cells

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3
Q

what does collagenase do

A

deteriorates the theca cells pre-ovulation

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4
Q

define the corpus hemorrhagicum

A

a short-lived, newly ovulated follicle that does not produce testosterone yet
will cause bleeding similar to a blood clot to release oocyte

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5
Q

define the corpus luteum

A

rejoins the cells with LH and produces progesterone to maintain pregnancy
if no pregnancy it will become a corpus albicons

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6
Q

what is the corpus luteum made up of

A

large luteal cells and small luteal cells

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7
Q

what is the difference between a mare’s ovary and a “normal” ovary

A

mares have an inverted cortex and medulla
there is an indention where ovulation occurs (ovulation fossa)

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8
Q

what are the secondary sex organs that make up the tubules

A

serosa
muscularis
submucosa
mucosa
lumen

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9
Q

what are the functions of the oviduct

A

move sperm and oocyte toward each ohter
supports early embryo development
transports embryo to uterus

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10
Q

what are the portions of the oviducts

A

infundibulum
ampulla
isthmus
uterotubal junction

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11
Q

describe the infundibulum

A

catches the oocyte and guides it to oviduct
blood causes swelling to contact the ovary (estrogen)
sends oocyte to ostium

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12
Q

describe the ampulla

A

high SA and cilia
propells oocyte
location of fertilization

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13
Q

describe the isthmus

A

transports sperm to oocyte
transports fertilized ovum

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14
Q

describe the uterotubal junction

A

regulates movement of embryo to uterus
restricts sperm movement to oviduct
prevents movement of unfertilized oocytes

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15
Q

describe oviduct mucosa

A

ciliated for motility and nonciliated for secretion

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16
Q

what do hormones do

A

dictate whats going on

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17
Q

when is there more cilia? when is there less cilia

A

more cilia before ovulation
less after ovulation

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18
Q

define ampulla

A

contains more mucosa and submucosa; more cilia and secretion

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19
Q

define isthmus

A

contains more muscle for increased contractions

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20
Q

what are the uterine functions

A

transport sperm
expel fetus and placenta
absorption and phagocytosis
partially prepares sperm for fertilization
provides environment for embryo and fetal growth
produces prostaglandin F2a

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21
Q

what does prostaglandin f2a do

A

causes corpus luteum to go away and decrease progesterone secretion
increases at end of pregnancy to increase contraction strength

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22
Q

what are the 3 types of cervices

A

duplex
bicornuate
simplex

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23
Q

describe the duplex cervix

A

no uterine body
2 separate horns
2 cervices

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24
Q

describe the bicornuate cervix

A

uterine body
2 horns
single cervix

25
Q

describe simplex cervix

A

uterine body
no horns

26
Q

define metrium

A

uterus

27
Q

what are the uterine layers

A

perimetrium
myometrium
endometrium

28
Q

describe the perimetrium

A

outer layer of simple squamous epithelial connective tissue
very thin and transparent

29
Q

describe the myometrium

A

longitudinal outer, circular inner
contributes to tone
contains longitudinal striations

30
Q

describe endometrium

A

mucosa and submucosa
2 cell types (ciliated for motility and secretory for embryo support)
contains blood layers

31
Q

where are glands found

A

the submucosa

32
Q

describe the ruminant uterus

A

contains caruncles (vascularized, button-like structures)
fuses with cotyledons to form placentome
amnion tissues join with caruncle

33
Q

describe the nonruminant uterus

A

contains mucosal folds

34
Q

what are the functions of the cervix

A

transport sperm
barrier for sperm
reservoir for sperm
blocks bacterial invasion during pregnancy
birth canal

35
Q

describe the cow cervix

A

thick connective tissue
4-5 anular rings

36
Q

when is mucous secreted

A

near time of breeding/ovulation

37
Q

define fernix

A

lined pocket beween vagina and cervix

38
Q

what are the functions of the vagina

A

copulatory organ
secretes lubrication
birth canal
glands secretes pheromones

39
Q

what is another name for the hymen

A

vulva-vagina sphincter

40
Q

define labia

A

closed entrance to vagina to keep out debris

41
Q

define clitoris

A

female sensory organ

42
Q

how does the male avian tract differ from mammals

A

the entire tract is internal

43
Q

where are avian testis located

A

along the dorm (spine) and adjacent to the kidney

44
Q

define the cloaca and the vent

A

common opening
external opening

45
Q

describe the vas deferens

A

transport duct
stores spermatozoa
opens at two papilla in the cloaca

46
Q

describe the papilla

A

the mating organ found in the cloaca

47
Q

describe the rudimentary copulatory organ (misnomer)

A

found in the cloaca; used to sex chicks

48
Q

describe the female avian ovary

A

produces yolk and is much larger than the mammalian oocyte

49
Q

the female avian tract follows a _____________- follicular growth

A

hierarchical

50
Q

how often does ovulation occur for a hen

A

every 24 hours

51
Q

what is the majority of the female avian tract

A

oviduct

52
Q

what does the avian infundibulum do?

A

catches the yolk
site of fertilization

53
Q

what does the magnum do

A

add albumen (protein)

54
Q

define isthmus in avians

A

adds the shell membrane

55
Q

define uterus (shell gland)

A

adds shell and H2O absorption

56
Q

vagina

A

small portion of tract

57
Q

where are the sperm storage tubules found

A

the utero-vaginal junction and the infundibulum

58
Q

what part of the avian repro tract develops

A

the left

59
Q

how long is sperm viable in a hen

A

2-15 weeks

ANS 327 Reproduction (13 decks)

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