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BECOM II EXAM IV > Male Repro Phys > Flashcards

Male Repro Phys Flashcards

1
Q

GnRH cell bodies are located

A

Arcuate and medial preoptic

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2
Q

What would you give to prevent puberty in a developing 6 yr old

A

Constant GnRH, desensitizes receptors

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3
Q

T/F sex steroids directly mediate CnRH

A

False, they act indirectly

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4
Q

Progesterone inhibition of GnRH pulse freq is antagonized by

A

Androgens

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5
Q

Androgen insensitivity has what effect on LH

A

Increases

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6
Q

What is the effect of high DHT on LH

A

DHT decreases LH

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7
Q

What it’s the effect of estrogen and progesterone on GnRH

A

When together they decrease GnRH

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8
Q

What does activin do

A

Stimulate FSH, secreted by S and L

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9
Q

What does inhibin do

A

Inhibits FSH, secreted by serotoli cells

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10
Q

What does follistatin do

A

Binds to activin, dissactivating it, secreted by Sertoli cells

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11
Q

Stress ______ GnRH

A

Inhibits

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12
Q

Melatonin _________ GnRH

A

Suppresses

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13
Q

Leptin _________ GnRH

A

Increases

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14
Q

LHR, FSHR has what kind of signaling cascade

A

cAMP

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15
Q

LH, FSH, TSH share

A

A common a chain

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16
Q

Be able to draw thing

A

Do it

17
Q

What does CYP19A1 do

A

Converts testosterone to estradiol

18
Q

What closes the epiphyseal plates

A

Estrogen

19
Q

Where is AMH produced

A

Sertoli cells

20
Q

While Sheehan or kallman be distinguishable at birth

A

Sheehan; both are hypogonadism

21
Q

What is hypergonadotrophic hypogonasism

A

High LH and FSH, low testosterone

22
Q

What cells create the blood-testis barrier

A

Sertoli

23
Q

What gives sexual sensation (nerve)

A

Spinal reflex

24
Q

Where are sperm stored, concentrated, and gain motility

A

Epididymis and ductus deferens

25
Q

Produces fructose, prostaglandins, and fibrinogen (also has most semen)

A

Seminal vessicles

26
Q

Contains alkaline fluid, clot, PSA

A

Prostate gland

27
Q

Secrete seminiferous tubule fluid, ABP, Kit L, AMH,

A

Sertoli cells

28
Q

What cells in testis have LH receptor

A

Leydig

29
Q

Where. Is activin, inhibin, and follistatin released

A

Sertoli

30
Q

Where is test converted to estradiol

A

Sertoli cells

31
Q

Where is cholesterol turned into testosterone

A

Leydig

32
Q

What is another name for CYP19A1

A

Aromatase

33
Q

T/F estrogen is a critical component for spermatogenesis

A

T

BECOM II EXAM IV (19 decks)

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