13672084
Descripción
Test por Kattie Stonemann, actualizado hace más de 1 año
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Creado por Kattie Stonemann
hace alrededor de 6 años
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Pregunta 1
Pregunta
What does GnRH stand for?
Respuesta
-
Gonadotropin releasing hormone.
-
Gandalf represents hell.
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Gonadotropin luteninsing hormone.
Pregunta 2
Pregunta
What is the purpose of GnRH?
Respuesta
-
The hypothalamus stimulates cells in the anterior pituitary gland to produce LH and FSH.
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To encourage the body to be sexually active.
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To encourage the body to ovulate.
Pregunta 3
Pregunta
What is LH?
Respuesta
-
Luteinising hormone.
-
Follicle stimulating hormone.
-
Loose haddock.
Pregunta 4
Pregunta
What is FSH?
Respuesta
-
Follicle stimulating hormone.
-
Luteinising hormone.
-
Fashionable sassy haddock.
Pregunta 5
Pregunta
What is the purpose of LH?
Respuesta
-
To stimulate cells in the testes to produce testosterone.
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To stimulate spermatogenisis.
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Both.
-
Neither.
Pregunta 6
Pregunta
What is the purpose of FSH.
Respuesta
-
To stimulate spermatogenisis.
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To stimulate cells in the testes to produce testosterone.
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Both.
-
Neither.
Pregunta 7
Pregunta
Tick all that applies to dihydrotestosterone.
Respuesta
-
Prenatal development.
-
Development of male sexual characteristics.
-
Development of sexual function.
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Stimulation of anabolism.
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Development of female sexual characteristics.
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Growth of testis.
Pregunta 8
Pregunta
What hormone promotes development and maintenance of female reproductive structures, feminine secondary sex characteristics and breasts.
Respuesta
-
Estrogen.
-
Progesterone.
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Relaxin.
-
Inhibin.
Pregunta 9
Pregunta
What hormones inhibits release of FSH and, to a lesser extent, LH?
Respuesta
-
Inhibin.
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Relaxin.
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Progesterone.
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Estrogen.
Pregunta 10
Pregunta
The oestrous cycle is the time from the beginning of heat to the period of the next, but what does polyestrous describe?
Respuesta
-
The cycle continues throughout the year if not pregnant.
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Has 2 cycles per year.
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Has 1 cycle per year.
Pregunta 11
Pregunta
What does Diestrous describe?
Respuesta
-
The cycle continues throughout the year if not pregnant.
-
Has 2 cycles per year.
-
Has 1 cycle per year.
Pregunta 12
Pregunta
What does monoestrous describe?
Respuesta
-
The cycle continues throughout the year if not pregnant.
-
Has 2 cycles per year.
-
Has 1 cycle per year.
Pregunta 13
Pregunta
Select an animal that is polyestrous.
Respuesta
-
Cattle.
-
Fox.
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Dog.
Pregunta 14
Pregunta
Select an animal that is diestrous.
Respuesta
-
Dog.
-
Cattle.
-
Fox.
Pregunta 15
Pregunta
Select an animal that is monoestrous.
Respuesta
-
Fox.
-
Dog.
-
Cattle.
Pregunta 16
Pregunta
There are 3 phases of the estrous cycle, what is the first?
Respuesta
-
Follucular.
-
Ovulation.
-
Luteal.
Pregunta 17
Pregunta
Second?
Respuesta
-
Ovulation.
-
Follucular.
-
Luteal.
Pregunta 18
Pregunta
Third?
Respuesta
-
Luteal.
-
Follucular.
-
Ovulation.
Pregunta 19
Pregunta
What step does this describe?
GnRH triggeres FSH release that stimulates growth of follicles in the ovary?
Respuesta
-
Follicular.
-
Ovulation.
-
Luteal.
Pregunta 20
Pregunta
What step does this describe?
BnHR and estrogen level changes will trigger LH release that causes ovulation.
Respuesta
-
Ovulation.
-
Luteal.
-
Follicular.
Pregunta 21
Pregunta
What step does this describe?
CL producing progesterone that affects the uterus lining.
Respuesta
-
Luteal.
-
Ovulation.
-
Follicular.
Pregunta 22
Pregunta
FSH and LH are secreted by the anterior pituitary gland but where is estrogen secreted from?
Respuesta
-
Ovaries.
-
Anterior pituitary gland.
-
Thyroid glands.
Pregunta 23
Pregunta
Throughout the cycle FSH it stimulates follicle development and what else?
Respuesta
-
Follicle releases estrogen.
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FSH stimulates the ovaries to release estrogen.
-
Both.
-
Neither.
Pregunta 24
Pregunta
Estrogen, what does it do?
Respuesta
-
Estogen stimulates the uteus lining to thicken.
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Estrogen inhibits FSH being released from pituitary gland.
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Both.
-
Neither.
Pregunta 25
Pregunta
Estrogen concentration peaks and stimulates the anterior pituitary to release LH and FSH then the LH surges to rapid increase and does what?
Respuesta
-
Ovulation stimulated by LH – follicule ruptures and egg is released.
-
Ruptured follicle turns into corpus luteul.
-
CL releases progesterone.
-
All.
-
None.
Pregunta 26
Pregunta
Progesterone rises and what?
Respuesta
-
Progesteron inhibits FSH and LH.
-
Uterus lining is maintained by progesterone.
-
If no embryo, the CL breaks down and stops releasing progesterone.
-
All of the above.
-
None.
Pregunta 27
Pregunta
The concentration of progesterone then falls and...
Respuesta
-
FSH and LH concentrations increase because they are no longer inhibited by progesterone.
-
Uterus lining not maintained.
-
Uterus lining sheds out.
-
Cycle starts again.
-
All of the above.
-
None.
Pregunta 28
Respuesta
-
Progesterone.
-
LH.
-
Estrogens.
-
FSH.
-
FSH.
-
Estrogens.
-
Progesterone.
-
LH.
-
LH.
-
FSH.
-
Progesterone.
-
Estrogens.
-
Estrogens.
-
LH.
-
FSH.
-
Progesterone.
Pregunta 29
Respuesta
-
Dominant follicule
-
1st wave
-
2nd wave
-
dominant follicule that ovulates
Pregunta 30
Pregunta
What is the first stage of the estrous cycle?
Respuesta
-
oestrus. – the female is receptive to the male.
-
Metoestrus – formation of corpus luteum.
-
Diestrus – corpus luteum fully functional.
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Proestrus – regression of corpus luteum, drop in progesterone, extends until start of oestrus.
Pregunta 31
Pregunta
What is the third stage.
Respuesta
-
Diestrus – corpus luteum fully functional.
-
oestrus. – the female is receptive to the male.
-
Metoestrus – formation of corpus luteum.
-
Proestrus – regression of corpus luteum, drop in progesterone, extends until start of estrus.
Pregunta 32
Pregunta
In cattle oestrus lasts 4-24hrs, and ovulates 30h after. When does metoestrus occur?
Respuesta
-
2-4 days after oestrus, ovulation and formation of CL.
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around day 5, ends with regression of CL
Pregunta 33
Pregunta
Diestrus occurs on the 5th day, ends with regression of CL on day 16, if the cattle is not pregnant CL will degenerate, then proestrus occurs but what happens?
Respuesta
-
Drop in progesterone.
-
Increase in progesterone.
-
Both.
-
Neither.
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