Reproduction

Question 1

What is the embryonic origin of the Gonads?

Answer 1

proliferation of the mesothelium and the condensation of the mesenchyme

Question 2

What is the embryonic origin of the primordial germ cells?

Answer 2

Endoderm Origin

Question 3

What induces the development of the Gonads and during what week?

Answer 3

Primordial germ cell migration to the genital ridge. Around week 6

Question 4

Origin of the primitive sex cords is what?

Answer 4

invagination of epithelium into the mesenchyme

Question 5

How does the paramesonephric (Mullerian )Duct form?

Answer 5

by the invagination of the coelemic epithelium

Question 6

The Presence of SRY gene forms what?

Answer 6

gonads to Testes

Question 7

The absence of SRY gene forms what?

Answer 7

Gonads to ovaries

Question 8

what does the Primitive sex cord form?

Answer 8

Medullary cord

Question 9

What 2 things does the medullary cord form?

Answer 9

1) rete Testes

2) seminifurous tubules

Question 10

Where do spermatogonia originate from?

Answer 10

Primordial germ cells

Question 11

Where do Leydig cells originate from?

Answer 11

Mesenchyme of the Genital Ridge

Question 12

Where do Sertoli cells come from?

Answer 12

Mesothelium

Question 13

What 3 things does the Mesonephric Duct form?

Answer 13

1) Vas defferens
2) Ductus Epidydimis
3) appendix epididymis`

Question 14

What 2 things form from the EXCRETORY mesonephric duct?

Answer 14

1) paradydimis

2) Ductuli Defferens

Question 15

Paramesonephric duct forms what two things?

Answer 15

1) prostatic utricle

2) Appendix testis

Question 16

Where does the seminal colliculus come from?

Answer 16

Primitive urogenital sinus

Question 17

In females where does the Ovarian Medulla originate from?

Answer 17

The degeneration of the medullary cords

Question 18

In females during what week do the cortical cords form?

Answer 18

7th week

Question 19

where do cortical cords form from?

Answer 19

mesothelium

Question 20

In 4th month cortical cords splits and forms what?

Answer 20

cell clusters called follicles

Question 21

In females what forms the oogenia

Answer 21

primordial germ cells

Question 22

If the primordial germ cells dont reach the genital ridge by week __________ gonads will not form

Answer 22

5th week

Question 23

What are the two types of ducts males and females both have?

Answer 23

Mesonephric Ducts and Paramesonephric Ducts

Question 24

In females what three things form from the Wolffian Ducts?

Answer 24

1) Epoophoron
2) Proophoron
3) Gartners Cyst

Question 25

In females what 3 things form from the paramesonephric duct?

Answer 25

1) Upper part of the vagina 2) uterus 3) oviducts (fallopian tubes)

Question 26

Where does the lower part of the vagina come from?

Answer 26

primitive urogenital sinus

Question 27

in females the primitive urogenital sinus forms 2 things one is the_______ _______

Answer 27

Sinovaginal bulb

Question 28

The homolog of the Oviducts in male is what?

Answer 28

Appendix testes

Question 29

Homolog of the uterus in males is what?

Answer 29

Prostatic Utricle

Question 30

Homolog of the Hymen in males is what?

Answer 30

Seminal Colliculus

Question 31

Hymen and Seminal Colliculus both are a remnant of what?

Answer 31

Sinus tubercle

Question 32

The homolog for the prostate gland in females is what?

Answer 32

urethral and Paraurethral Glands

Question 33

The homolog of the bulbourethral glands in females is what?

Answer 33

Greater Vestibular Glands

Question 34

The homolog of the Seminal Vesical in females is what?

Answer 34

NOTHING

Question 35

Spongy urethra forms what ?

Answer 35

Bulbourethral glands

Question 36

Prostatic Urethra forms what?

Answer 36

prostate gland

Question 37

Outgrowth of the mesonephric duct forms what?

Answer 37

Seminal vesicles

Question 38

Anti Mullarian hormone supresses what?

Answer 38

Paramesonephric ducts

Question 39

Testosterone stimulate the production of what?

Answer 39

mesonephric duct

Question 40

What is the defect uterus arcuatus?

Answer 40

the Fundus of the uterus goes down due to lack of fusion

Question 41

What is the defect uterus bicornis ?

Answer 41

1 uterus 2 horns MOST COMMON TYPE OF DEFECT

Question 42

What is Cervical Atresia?

Answer 42

when the cervix closes up due to BILATERAL mullarian atresia

Question 43

What is Vaginal atresia?

Answer 43

short vagina. Sinovaginal bulbs do not form

Question 44

Sinovaginal bulbs does what?

Answer 44

Elongation of the vagina forms the hymen

Question 45

WHat forms the shaft of the penis and the clitoris?

Answer 45

Genital tubercle

Question 46

what forms the scrotum and the labia majora?

Answer 46

Genital Fold

Question 47

What forms the spongy urethra and the labia minora?

Answer 47

urethral fold

Question 48

What forms the Penile urethra and the Vestibule ?

Answer 48

definitive urognital sinus

Question 49

What is hydrometrocolpos?

Answer 49

Imperforated hymen

Question 50

What is hypospadias?

Answer 50

Incomplete fusion of the urethral fold (holes in the shaft)

Question 51

Epispadias is associated with what?

Answer 51

exstrophy of the bladder, urethal opening is in the dorsal part of the penis

Question 52

What causes Micropenis?

Answer 52

insufficient androgen production

Question 53

Patient with double penis is caused by what?

Answer 53

the genital tubercle splits

Question 54

What is cryptorchidism?

Answer 54

Failure for testes to descend

Question 55

Derivatives of the gubernaculum in females is what?

Answer 55

Ovarian ligament and round ligament