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Gynecology > Development of Bio;ogy of Sex > Flashcards

Development of Bio;ogy of Sex Flashcards

1
Q

Genetic Female sex is determined by

A

Absence of SRY gene

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2
Q

Definitive process for Sex Determination and Differentiation

A

Chromosomal or Genetic Sex

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3
Q

Determined at time of fertilization

A

Chromosomal or Genetic Sex

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4
Q

Single most consistent determinant of maleness

A

Presence of Y chomosomes

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5
Q

Does presence of additional X chromosome alter fundamental maleness?

A

No, as long as you have Y chromosome -> Male

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6
Q

Tests for Sex Determination

A

Sex Chromatin
Hair Root Test
Karyotyping

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7
Q

One of the two copies of the X chromosome present in Females is inactivated (Lyon Hypothesis)

A

Sex Chromatin Test

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8
Q

Sex Chromatin Test: 1 Barr body = 1 x chromosome

A

Normal Female

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9
Q

Sex Chromatin Test: 2 Barr bodies = 2 x chromosome

A

Superfemale

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10
Q 
Florescent body (Y body) from hair strands
Used in screening large population in Sports
A

Hair Root Test

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11
Q

Most accurate method of sexual determination

Indicated in:
Gender reassignment surgery
Ambiguous genitalia

A

Karyotyping

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12
Q

Development of primary sex organs in response to genetic sex

A

Gonadal Sex

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13
Q

Primitive gonad, outer cortex

A

Ovary

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14
Q

Primitive organ, inner medulla

A

Testes

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15
Q

AOG Formation of Leydig cells

A

8-9 weeks

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16
Q

AOG presence of definitive testes

A

9 weeks

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17
Q

AOG testes descends through inguinal ring

A

7-9 months

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18
Q

AOG maximal development of ovaries

A

20-25weeks

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19
Q

AOG developmental start of ovaries

A

9 weeks - in the absence of testes formation

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20
Q

Regulation of gonadal sex of the differentiation of genital apparatus
Influenced mainly by genetics and hormonal factors

A

Phenotypic (Genital Sex)

21
Q

Testosterone -> external genitalia

A

Classic Endocrine Mechanism

22
Q

Testosterone -> Wolffian duct

MIF -> Mullerian duct

A

Local Paracrine Regulatory Mechanism

23
Q

Responsible for differentiation of Wolffian ducts -> Male internal genitalia

A

Testosterone - from Leydig Cell

24
Q

Required for conversion of testosterone -> dihydrotestosterone

A

5-a reductase activity

25
Q

Secretes Mullerian Inhibiting Factor

A

Sertoli cells

26
Q

Gonadotropic pattern of secretion in males

A

Tonic (Pulsatile, sustained)

27
Q

Gonadotropic pattern of secretion in Females

A

Cyclic (Pulsatile but cyclic)

28
Q

Growth and Development of male external genitalia require

A

Dihydrotestosterone

29
Q

Growth of labia requires

A

Estrogen

30
Q

Normal female fetus exposure to excess testosterone may cause

A

Virilization

31
Q

The Wolffian duct is also known as the

A

Mesonephric duct

32
Q

The Mullerian duct is also known as the

A

Paramesonephric duct

33
Q

The Wolffian ducts have the potential of differentiating into:

A

Epididymis
Vas Deferens
Ejaculatory Duct
Seminal Vesicles

The wolves Ndidi’s Vast Defense Ejected Simon

34
Q

The Mullerian ducts serve as the anlagen of the

A

Upper Vagina
Fallopian Tube
Cervix
Uterus

Mullers upper bag fall from the Service UTE

35
Q

Derivatives of the genital tubercle in males

A

Glans penis
Corpus spongiosum
Corpora cavernosa

Youtuber Glen’s penis went spongy in the cave

36
Q

Derivatives of the genital tubercle in females

A

Clitoris
Vestibular bulb

May tubo si Clint sa investment nya sa bulb

37
Q

Derivatives of the urogenital folds in males

A

Ventral shaft of the penis

Males fold their laundry in ventilation shafts

38
Q

Derivatives of the urogenital folds in females

A

Labia minora

Females fold their laundry in Mining Labs

39
Q

Derivatives of the genital swelling or labioscrotal swelling in males

A

Scrotum and Prepuce

40
Q

Derivatives of the genital swelling or labioscrotal swelling in females

A

Labia Majora

Prepare to be Scrutinized for the swelling in your labi by the Major

41
Q

Derivatives of the urogenital sinus in males

A

Urethra
Cowper glands
Prostate gland

Sin of Ur Prostitute Cow

42
Q

Derivatives of the urogenital sinus in females

A

Urethra
Lower vagina
Bartholin glands
Skene glands

Sin of Ur Lowering Bag to Bart’s Skin

43
Q

Growth of the labia to normal size requires

A

Estrogen

44
Q

Males or Females: tonic release of gonadotropins

A

Males

45
Q

Males or Females: cyclic release of gonadotropins

A

Female

46
Q

Usual distinguishable difference between triple X and normal females

A

None

47
Q

Disorder of sexual differentiation wherein there is both ovarian and testicular tissues

A

Hermaphroditism

48
Q

True or Pseudohermaphrodites: functional gonads

A

True

Gynecology (8 decks)

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