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VMED 155 > PRADO PART 1 > Flashcards

PRADO PART 1 Flashcards

1
Q

GnRH, FSH, and LH targets?

A

APG, granulosa cells (ovary), theca interna and luteal cells

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2
Q

FSH induces 2 hormone synthesis

A

estradiol, inhibin

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3
Q

FSH and LH is produced by the (organ)

A

anterior lobe of the pituitary gland

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4
Q

if there is a spike in LH, what does it stimulate ?

A

stimulates ovulation and the formation of corpus luteum (luteinization)

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5
Q

The more follicles grow, the more estradiol is produced T/F

A

T

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6
Q

2 hormones released by the granulosa cells

A

estradiol, inhibin

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7
Q

estradiol targets the following except:
brain
myometrium
reproductive tract lining
none

A

none

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8
Q

Arched back behavior indicating that a female will allow a male to mount her

A

lordosis

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9
Q

progesterone is released by

A

corpeus luteum, in or on ovary

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10
Q

P4 targets the following except:
hypothalamus
reproductive tract lining
brain
myometrium
alveoli
endometrium

A

2nd

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11
Q

P4 functions:
decrease GnRH release, increase reproductive behavior, increase myometrial contractions, increase alveoli devt, increase endometrial secretions

A

dec, dec, dec, inc inc

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12
Q

at low levels, P4 has a positive feedback on GnRh

A

false - either high levels dapat or negative feedback

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13
Q

what stage and under what phase?
FSH just peaked, inc E2 and inhibin, P4 low and non exsitent, LH tonic

A

proestrus/follicular

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14
Q

what stage and under what phase?
E2 and inhibin peaking, LH surge, declining FSH

A

estrus/follicular

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15
Q

marks the transition from follicular to luteal phase

A

ovulation

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16
Q

what stage and under what phase?
dec E2 & inhibin, tonic LH, inc p4, small FSH peak

A

metestrus/luteal

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17
Q

what stage and under what phase?
peak LSH, tonic LH, FSH, E2, inihibn peak

A

diestrus/luteal

18
Q

what stage and under what phase?
peak LSH, tonic LH, FSH, E2, inhibin peak

A

diestrus/luteal

19
Q

what stage and under what phase?
peak LSH, tonic LH, FSH, E2, inhibin peak

A

diestrus/luteal

20
Q

what occurs AFTER (increasing) ovulation?

A

P4, FSH, inhibin

21
Q

what occurs BEFORE (increasing) ovulation ?

A

LH and E2

22
Q

seasonally polycylic animals include ewe, bitch, goat

A

false - monocyclic si dog

23
Q

female becomes sexually mature and able to reproduce

A

puberty

24
Q

Among females of the domestic species, puberty comes AFTER the development of physical maturity

A

false - precedes dapat

25
Q

T/F no estrus cycle, no follicle growth

A

false - no estus, there is still growth

26
Q

puberty is signalled by 1st estrus or 1st ovulation T/F

A

T

27
Q

mares, queen cat, doe reach puberty at age

A

1-2 yo
7-12mo
4-8mo

28
Q

cow, ewe, sow reach puberty at

A

7-8mo
6-15mo
6-8mo

29
Q

chicken, bitch, pygmgy goat reach puberty at

A

18weeks (~4.5mo)
6-20mo
3 mo

30
Q

what causes the changes during puberty? 2

A

pdtn of female gametes
hormone synthesis

31
Q

hormone associated with onset of ovarian acity, hence puberty

A

LH

32
Q

Puberty onset relies on the secretion of

A

ovarian oestradiol

33
Q

before puberty, estrogen has an ___ effect when at low concn

A

inhibitory

34
Q

puberty in males is based on the 3

A

behavior, age of 1st ejaculation, quality of ejaculate

35
Q

influences the release of LH, FSH and prolactin, response to amount of daylight

A

melatonin

36
Q

influences the release of GnRH

A

kisspeptin

37
Q

pinealectomised ewews will still show seasonal breeding behaviors T/F

A

T

38
Q

the mare does not require an intact pineal gland to show a normal repsonse to photperiod changes T/F

A

F - sheep to or require kasi pag walang pineal gland, no normal response

38
Q

4 external factors influencing puberty

A

Nutrition
proximity of male
climate
disease

39
Q

animal that has silent heat or subestrus

A

cow

40
Q

increasing daylneth most important factor in this specues

A

cat

VMED 155 (13 decks)

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