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Physiology > 5.9 Pregnancy And Lactation > Flashcards

5.9 Pregnancy And Lactation Flashcards

0
Q

Hormone that stimulates milk ejection

A

Oxytocin

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1
Q

Hormone that stimulates milk secretion

A

Prolactin

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2
Q

Increasing levels of this hormone is responsible for the progression of parturition

A

Oxytocin

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3
Q

Hormone that makes glucose available for fetus

A

HPL

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4
Q

Source of estrogen and progesterone during last trimester of pregnancy

A

Placenta

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5
Q

Fetal organ that produces DHEA to be converted to estrogen

A

Adrenal cortex

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6
Q

Responsible for prevention of entry of more than one sperm in oocyte

A

Cortical reaction

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7
Q

Contact of sperm head and zona pellucida is made possible by this reaction

A

Acrosomal reaction

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8
Q

True or false.

Implantation of zygote involves infiltration of myometrium by synctiotrophoblasts.

A

False. Infiltration of myometrium does not occur only infiltration of endometrium.

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9
Q

This activates exocytosis of cortical granules

A

Ca signaling cascade

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10
Q

High levels of this hormone is responsible for morning sickness

A

hCG

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11
Q

Luteal placental shift happens on the _th week of pregnancy

A

8th week of pregnancy

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12
Q

Hormone Responsible for myometrial quiescence

A

Progesterone

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13
Q

Hormone Responsible for cervical rigidity

A

Progesterone

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14
Q

Hormone responsible for cervical ripening

A

Estrogen

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15
Q

Both hormones that stimulate breast growth and development

A

Progesterone and estrogen

16
Q

Ovulation is suppressed when there is lactation because

A

Prolactin inhibits GnRH secretion which consequently inhibits LH and FSH secretion

17
Q

Hormone that inhibits prolactin

A

Dopamine

18
Q

Explains suppression of lactation during pregnancy

A

High progesterone and estrogen

19
Q

Hormone that prevent luteolysis

A

hCG

20
Q

Apposition occurs in the

A

Crypts

21
Q

It is when the embryonic pole attaches to the uterine endometrium

A

Adhesion

22
Q

Decidua secretes these factors which moderate activity of hydrologic enzymes. What are these factors?

A

Tissue inhibitors of metalloproteinases (TIMPs)

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