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Anatomy & Physiology 2 > Lecture 11: Reproductive System > Flashcards

Lecture 11: Reproductive System Flashcards

1
Q

How many chromosomes do gamestes have?

A

23

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2
Q

Gamestes go through what process?

A

meiosis

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3
Q

What do gonads form from?

A

mesoderm

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4
Q

Gonads turn to what?

A

ovaries & testes

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5
Q

What are the 2 layers of the gonads?

A

thick outer cortex & inner medulla

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6
Q

What is the name of the basic germ cell?

A

primordial

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7
Q

How do the early germ cells form on the surface
?

A
  • migrate inward during gastrulation across allantois
  • cross hindgut wall & migrate to genital ridge
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8
Q

What is the Wolffian duct?

A
  • derived from archinephric duct
  • stays in males
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9
Q

What is the Mullerian duct?

A
  • forms laterally
  • stays in women
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10
Q

What causes the expression of the SRY gene on Y chromosome?

A

when male germ cells move into the medulla of the ridge

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11
Q

What produces anti-Mullerian hormone?

A

sertoli cells in seminiferous tubules

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12
Q

What produces testosterone?

A

leydig cells

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13
Q

What occurs when germ cells move into cortex of gonadal ridge?

A

forms ovaries

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14
Q

What does the Mullerian duct differentiate into?

A
  • oviducts
  • uterus
  • cervix
  • vagina
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15
Q

What do primordial cells form in mitosis?

A

primary oocytes

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16
Q

When does a primary oocyte activate?

A

at puberty; every 28 days

17
Q

What does the primary oocyte produce?

A

secondary oocyte & 1 polar body (23 pairs of chromatids each)

18
Q

When does meiosis 2 occur?

A

after fertilization

19
Q

What does the secondary oocyte produce?

A

1 haploid ovum & second polar body (with 23 chromosomes each)

20
Q
A
21
Q

What produces LH production?

A

male pituitary galnd

22
Q

What does FSH trigger?

A
  • females -> oocyte development
  • males -> sperm production in seminiferous tubules
23
Q

What process do spermatogonia go through?

A

mitosis

24
Q

What does a daughter cell form?

A

forms 4 haploid spermatids supported by sertoli cells

25
Q

How does sperm travel?

A

during ejaculation sympathetic system has sperm travel via vas deferens to the urethra supported by semen

26
Q

What secretes LH in females?

A
  • pituitary gland
  • causes ovaries to produce estrogen
27
Q

What does estrogen trigger the formation of ?

A
  • endometirum
  • thickening of uterine lining
  • increased LH secretion
  • increase in GnRH from hypothalamus
28
Q

What stimulates ovulation?

A

Anatomy & Physiology 2 (12 decks)

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