GU and Genitalia Development Flashcards Preview

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Flashcards in GU and Genitalia Development Deck (19):
1

Mesonephric tubules become ________ in male

Ductus deferens

2

Cause of renal agenesis

Failure or ureteric bud to form, result in absence of a kidney

3

Oligohydraminos can occur from _____ sequence

Potter

4

3 effects of oligohydraminos

1. Limb deformations
2. Abnormal face development
3. Pulmonary hypoplasia

5

2 types of cystic kidney

1. Multicystic
2. Polycystic

6

Allantois

Finger-like projection of hypoblast that becomes incorporated into umbilical cord

7

Posterior urethral valves cause ______ and only occur in ______

Oligohydramnios
Males

8

Embryos in indifferent phase until ___ week of gestation

7th

9

Medullary portion of primary sex cords in male develop into _______

Sertoli cells

10

Function of Leydig cells

Secrete testosterone which is involved in development of testes and associated ducts

11

Sertoli cells secrete ________ which causes degeneration of paramesonephric ducts in males

Mullerian Inhibiting Substance (MIS)

12

Fate of primary sex cords in females

Degeneration

13

Fate of paramesonephric ducts in female

Uterus, cervix, vagina

14

Genital swelling becomes _____ in male

Scrotum

15

Genital swellings become _____ in female

Labia majora

16

Hypospadias

Urethral folds fail to fuse completely causing external urethral orifice to be located in ventral surface of penis rather than terminal end

17

Epispadias

Failure of body wall closure in lower abdominal region that gives rise to an opening on the dorsal surface of the penis

18

Cryptorchidism

Undescended testes

19

3 stages in development of the kidney

1. Pronephros
2. Mesonephros
3. Metanephros