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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
Gonads initially form where
Lumbar region
26
In week 7 where are testis and ovary
T10
27
When does broad ligament develop?
Week 12
28
Round ligament of ovary is drawn through inguinal canal to attach to
Labrum Majorum
29
In Week 12 what happens to testis
at level of deep inguinal ring until 7th month
30
When does testis enter scrotum?
39 Weeks
31
What is Cryptorchidism
Undescended Testes
32
Undescended testes can turn into what type of tumour
Germ Cell
33
Sperm can survive
5 Days
34
Oocyte can survive
24 Hours
35
First cell division happens when
Day 2
36
Morula formation when
Day 4
37
Blastocyst forms when
Day 5
38
The embryo hatches from
Zona Pellucida day 5 after fertilisation
39
Mature placenta is formed from (4)
Chorionic Villi Intervillous Space Placenta Septae Cotyledons
40
Between what weeks does bilaminar disc and development of amniotic sac, yolk sac form
Week 2-3
41
When does differentiation of bilaminar disc happen
Week 3-4
42
When does organogenesis happen
Week 5-8
43
Mesoderm forms (4)
Ureters Bladder Trigone Gonads Peritoneum
44
Endoderm forms (2)
Urethra | Bladder except Trigone
45
What is a twin pregnancy non identical called
Dizygotic
46
What is a identical twin pregnancy
Monozygotic
47
What is Monozygotic twin pregnancy separate placenta and amniotic sac called
Dichoronic Diamniotic
48
What is Monozygotic twin pregnancy Share placenta and separate amniotic called
Monochorionic Diamniotic
49
What is monozygotic twin pregnancy with share placenta and amniotic sac called
monochromic monoamniotic
50
What is the first 8 weeks of embryo development?
Embryogenesis
51
What forms kidney and ureter
Gonad and Nephrogenic Cord
52
Kidneys final position by
Week 12
53
Bladder and Urethra formed from
Urogenital Sinus
54
The cloaca is divided by urorectal septum to form
Urogenital sinus | Anal Canal
55
Urogenital sinus will form
Bladder and Urethra
56
Indifferent gonad develops in
Gonadal ridge
57
What chromosome contains SRY gene
Y chromosome
58
SRY produces
testis determining factor
59
Leydig cells are produced from
Intermediate Mesoderm
60
Sertoli cells are derived from
Surface epithelium under effect of AMH
61
the gonads develop where
posterior abdo wall
62
the testes reach deep inguinal ring by
7 months of pregnancy
63
bladder and urethra develops from
urogenital part of cloaca
64
Mesonepheric duct lower part forms
Trigone
65
Mesonephric ducts are also called
Wolffian Ducts
66
What drains mesonephros into cloaca
Wolffian Ducts
67
Mesonephric ducts forms what in males and females
Bladder
68
Urogenital sinus forms
Lower 1/3rd of Vagina
69
Paramesonephric duct forms
uterus and upper 2/3rd of vagina
70
What fuses posterior to anterior to form penile urethra (spongy urethra)
urogenital folds
71
What forms final part of urethra?
Glans Penis
72
What forms the labia major
labioscrotal folds
73
What forms the genital tubercle
clitoris

Repro Anatomy - Extras from Onenote (2 decks)

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