Reproduction Flashcards

1
Q

What cells secrete testosterone?

A

Leydig cells

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2
Q

what cells nourish sperm

A

sertoli cells

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3
Q

what stimulates leydig cells

A

LH

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4
Q

where are sperm stored

A

in the vas deferens

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5
Q

most of the fluid that composes sperm comes from what secretions

A

seminal vesicle secretions

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6
Q

what is capacitation

A

the change that sperm undergoes to “activate” after ejaculation

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7
Q

what is the active form of testosterone

A

dihydrotestosterone

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8
Q

The Y chromosome cause a regression in what ducts

A

mullerian ducts

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9
Q

the lack of a Y chromosome causes a regression in what ducts

A

wolffian

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10
Q

LH acts on what cells to secrete progesterone

A

granulosa cells

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11
Q

what do granulosa cells secrete

A

progesterone

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12
Q

progesterone provides a strong inhibitory effect on ___ & ___

A

FSH and LH

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13
Q

what cells secrete inhibin

A

lutein

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14
Q

Estrogen has a stronger effect on bone fusion than testosterone (T/F)

A

TRUE

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15
Q

what is progesterone’s most important function

A

to cause secretory changes in the uterine endometrium during the second half of the menstrual cycle to prepare the egg for possible implantation

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16
Q

the end of the menstrual cycle shows a degradation of the ___ ___

A

corpus luteum

17
Q

when the corpus luteum degrades what occurs?

A

a decrease in progesterone which triggers a rise in LH and FSH which will trigger the flushing of the egg and the start of a new cycle

18
Q

Urinary gonadotropin levels will ___ exponentially at menopause

A

rise

19
Q

female puberty is triggered by what

A

FSH and LH by the anterior pituitary and by GnRH from the hypothalamus