GU and Genitalia Development

Question 1

Mesonephric tubules become ________ in male

Answer 1

Ductus deferens

Question 2

Cause of renal agenesis

Answer 2

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

Question 3

Oligohydraminos can occur from _____ sequence

Answer 3

Potter

Question 4

3 effects of oligohydraminos

Answer 4

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

Question 5

2 types of cystic kidney

Answer 5

1. Multicystic

2. Polycystic

Question 6

Allantois

Answer 6

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

Question 7

Posterior urethral valves cause ______ and only occur in ______

Answer 7

Oligohydramnios

Males

Question 8

Embryos in indifferent phase until ___ week of gestation

Answer 8

7th

Question 9

Medullary portion of primary sex cords in male develop into _______

Answer 9

Sertoli cells

Question 10

Function of Leydig cells

Answer 10

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

Question 11

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

Answer 11

Mullerian Inhibiting Substance (MIS)

Question 12

Fate of primary sex cords in females

Answer 12

Degeneration

Question 13

Fate of paramesonephric ducts in female

Answer 13

Uterus, cervix, vagina

Question 14

Genital swelling becomes _____ in male

Answer 14

Scrotum

Question 15

Genital swellings become _____ in female

Answer 15

Labia majora

Question 16

Hypospadias

Answer 16

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

Question 17

Epispadias

Answer 17

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

Question 18

Cryptorchidism

Answer 18

Undescended testes

Question 19

3 stages in development of the kidney

Answer 19

1. Pronephros
2. Mesonephros
3. Metanephros