Development of Gonads. Flashcards

1
Q

Bipotential or indifferent gonad seen at

A

6th week.

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2
Q

Testis develops at

A

7th week

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3
Q

Ovary develops at

A

8th week

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4
Q

Female External genitalia develops at

A

12th week

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5
Q

Male External genitalia develops at

A

14th week.

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6
Q

SRY gene produces ___ factor

A

Testis inhibiting factor

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7
Q

Sertoli cells produce

A

Mullerian inhibiting factor

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8
Q

Leydig cells produce

A

Testosterone

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9
Q

Canalization of Medullary or sex cords forms

A

Seminiferous tubules

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10
Q

Seminiferous tubules - derived from

A

Canalization of Medullary or sex cords

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11
Q

Non - Canalization of Medullary or sex cords gives rise to

A

Sertoli cells and leydig cells.

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12
Q

Genital ridge in male

A

Testis

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13
Q

Genital ridge in female

A

Ovary

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14
Q

Genital Tubercle in male

A

Penis

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15
Q

Genital tubercle in female

A

Clitoris

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16
Q

Genital Swelling in Male

A

Scrotum

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17
Q

Genital Swelling in female

A

Labia majora

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18
Q

Mesonephric duct in males

A

SEED-

19
Q

Mesonephric duct in females

A

Appendix of ovary and Gartner’s duct

20
Q

Appendix of ovary and Gartner’s duct in females is formed by

A

Mesonephric duct remnants

21
Q

Paramesonephric duct in males

A

Appendix of testis and Prostatic utricle

22
Q

Appendix of testis and Prostatic utricle- in males formed by

A

Paramesonephric duct

23
Q

Paramesonephric duct in Females

A

FT, Cervix and Upper 2/3rd of Vagina

24
Q

Genital fold in males

A

Ventral aspect of penis

25
Q

Ventral aspect of penis derived from

A

Genital fold

26
Q

Labia minora derived from

A

Genital fold

27
Q

Genital fold in females

A

Labia minora

28
Q

Unfused part of Paramesonephric duct

A

FT

29
Q

Fused part of Paramesonephric duct

A

Cervix and vagina

30
Q

Lower 1/3rd of vagina developed from

A

Endoderm - urogenital sinus

31
Q

Upper 2/3rd of vagina developed from

A

Intermediate mesoderm - paramesonephric duct

32
Q

Testis is formed in

A

Abdomen

33
Q

_____ helps in descent of testis

A

Gubernaculum.

34
Q

Sites of Ectopic testis

A

Scrotum
PS
Perineum
Saph. opening of Thigh

35
Q

Tunica vaginalis - derived from

A

Gubernaculum

36
Q

location of testis in 1st month

A

Dorsal body wall in lumbar region

37
Q

Location of Testis in 3rd month

A

Iliac fossa

38
Q

Location of testis in 7th month

A

Deep Inguinal ring

39
Q

Location of testis in 8th month

A

Inguinal canal

40
Q

Location of testis at 9th month or birth

A

Scrotum

41
Q

Gubernaculum in Females

A

Proximal - Ligament of ovary

distal - Round Ligament of uterus

42
Q

Round Ligament of uterus is formed from

A

Gubernaculum

43
Q

Ligament of ovary is derived from

A

Gubernaculum.