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Repro Anatomy - Extras from Onenote > Embryology > Flashcards

Embryology Flashcards

1
Q

Pronephros is what?

A

Cervical kidneys

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2
Q

Mesonephros is what?

A

Thoracocolumbar kidneys

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3
Q

Metanephros is what

A

Pelvic Kidneys

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4
Q

Primitive sex cords are formed from

A

Mesenchyme of genital ridges

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5
Q

What becomes paramesonephric duct

A

Epithelium of Mesonephros

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6
Q

Mesonephric duct also known as

A

Wollfian Duct

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7
Q

Paramesonephric duct also known as

A

Mullerian Duct

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8
Q

Mesonephric duct in males forms (3)

A

Epididymis
Vas Deferens
Seminal Vesicle

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9
Q

Urogenital Sinus forms (3)

A

Bladder
Urethra
Prostate
Lower Vagina

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10
Q

Paramesonephric duct forms (3)

A

Fallopian Tube
Uterus
Cervix part of Vagina

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11
Q

SRY codes for what

A

TDF in Males

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12
Q

What makes indifferent gonad develop into testis

A

TDF in Males

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13
Q

What forms leading cells

A

MIS transforms mesenchymal cells

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14
Q

What produces testosterone and thus male external genitals

A

Leydig Cells

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15
Q

SRY transforms

A

Sertoli cells

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16
Q

What makes paramesonephric duct degenerate

A

Sertoli cells secretes MIS

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17
Q

When is TDF secretes

A

Week 7

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18
Q

What week does Leydig Cells produce Testosterone

A

Week 8

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19
Q

Seminal Vesicles are an outgrowth of

A

Caudal end of mesonephric duct

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20
Q

Prostate is an outgrowth of

A

From urethra from urogenital sinus

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21
Q

In the presence of TDF gonad does what

A

develops into testis

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22
Q

What end of paramesonephric duct becomes ovary

A

Cranial

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23
Q

What end of paramesonephric duct becomes sup vagina and uterus

A

Caudal

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24
Q

Inferior part of vagina developed from

A

Urogenital Sinus

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25
Q

Gonads initially form where

A

Lumbar region

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26
Q

In week 7 where are testis and ovary

A

T10

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27
Q

When does broad ligament develop?

A

Week 12

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28
Q

Round ligament of ovary is drawn through inguinal canal to attach to

A

Labrum Majorum

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29
Q

In Week 12 what happens to testis

A

at level of deep inguinal ring until 7th month

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30
Q

When does testis enter scrotum?

A

39 Weeks

31
Q

What is Cryptorchidism

A

Undescended Testes

32
Q

Undescended testes can turn into what type of tumour

A

Germ Cell

33
Q

Sperm can survive

A

5 Days

34
Q

Oocyte can survive

A

24 Hours

35
Q

First cell division happens when

A

Day 2

36
Q

Morula formation when

A

Day 4

37
Q

Blastocyst forms when

A

Day 5

38
Q

The embryo hatches from

A

Zona Pellucida day 5 after fertilisation

39
Q

Mature placenta is formed from (4)

A

Chorionic Villi
Intervillous Space
Placenta Septae
Cotyledons

40
Q

Between what weeks does bilaminar disc and development of amniotic sac, yolk sac form

A

Week 2-3

41
Q

When does differentiation of bilaminar disc happen

A

Week 3-4

42
Q

When does organogenesis happen

A

Week 5-8

43
Q

Mesoderm forms (4)

A

Ureters
Bladder Trigone
Gonads
Peritoneum

44
Q

Endoderm forms (2)

A

Urethra

Bladder except Trigone

45
Q

What is a twin pregnancy non identical called

A

Dizygotic

46
Q

What is a identical twin pregnancy

A

Monozygotic

47
Q

What is Monozygotic twin pregnancy separate placenta and amniotic sac called

A

Dichoronic Diamniotic

48
Q

What is Monozygotic twin pregnancy Share placenta and separate amniotic called

A

Monochorionic Diamniotic

49
Q

What is monozygotic twin pregnancy with share placenta and amniotic sac called

A

monochromic monoamniotic

50
Q

What is the first 8 weeks of embryo development?

A

Embryogenesis

51
Q

What forms kidney and ureter

A

Gonad and Nephrogenic Cord

52
Q

Kidneys final position by

A

Week 12

53
Q

Bladder and Urethra formed from

A

Urogenital Sinus

54
Q

The cloaca is divided by urorectal septum to form

A

Urogenital sinus

Anal Canal

55
Q

Urogenital sinus will form

A

Bladder and Urethra

56
Q

Indifferent gonad develops in

A

Gonadal ridge

57
Q

What chromosome contains SRY gene

A

Y chromosome

58
Q

SRY produces

A

testis determining factor

59
Q

Leydig cells are produced from

A

Intermediate Mesoderm

60
Q

Sertoli cells are derived from

A

Surface epithelium under effect of AMH

61
Q

the gonads develop where

A

posterior abdo wall

62
Q

the testes reach deep inguinal ring by

A

7 months of pregnancy

63
Q

bladder and urethra develops from

A

urogenital part of cloaca

64
Q

Mesonepheric duct lower part forms

A

Trigone

65
Q

Mesonephric ducts are also called

A

Wolffian Ducts

66
Q

What drains mesonephros into cloaca

A

Wolffian Ducts

67
Q

Mesonephric ducts forms what in males and females

A

Bladder

68
Q

Urogenital sinus forms

A

Lower 1/3rd of Vagina

69
Q

Paramesonephric duct forms

A

uterus and upper 2/3rd of vagina

70
Q

What fuses posterior to anterior to form penile urethra (spongy urethra)

A

urogenital folds

71
Q

What forms final part of urethra?

A

Glans Penis

72
Q

What forms the labia major

A

labioscrotal folds

73
Q

What forms the genital tubercle

A

clitoris

Repro Anatomy - Extras from Onenote (2 decks)

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