PELVIS/PERINEUM- post mid-term

Question 1

Abnorm. urehral openings on ventral surface of penis

Answer 1

hypospadias

Question 2

If infant is passing urine near anus instead of tip of penis whats the problem?

Answer 2

Scrotal hypospadias

Question 3

failure of fusion of labioscrotal folds- involved in formed external urethral orifice only

Answer 3

scrotal or perineal hypospadias

Question 4

failure of fusion of urethral fold

Answer 4

penile hypospadias

Question 5

formed from endoderm of cloaca and ectoderm of procotodeum and forms future anus

Answer 5

cloacal membrane

Question 6

abnorm urethral openings on dorsal side of penis- failure of fusion of what? results from? forms?

Answer 6

epispadias

• spongy urethra
• results from genital tubercle dev more dorsally during development
• forms primordial phallus

Question 7

normally fuse along ventral side of penis to form spongy urethra

Answer 7

urogenital folds

Question 8

bounded by urogenital folds and ruptures to form urogenital orifice

Answer 8

urogenital membrane

Question 9

most anorectal anomalies result from? which results in?

Answer 9

abnorm dev of urogenital septum

- results in non division of cloaca into urogenital and anorectal parts

Question 10

common outlets of intestinal, urinary, and reproductive tracts- specifically associated with?

Answer 10

persistent cloaca

Question 11

What form primordial of seminiferous tubules?

Answer 11

seminiferous cords

Question 12

approach each other and fuse to form scrotum?

Answer 12

Labiocsrotal swellings

Question 13

condition in which urinary bladder mucosa is open tot he outside in the fetus or newborn? this results from?

Answer 13

extrophy of the bladder
- results from failure of primitive streak mesoderm to migrate around cloacal membrane and often occurs in combo w/ epispadias

Question 14

Androgens are responsible for development of?

Answer 14

testes

Question 15

condition where male has 47 XXY chromosomes

Answer 15

Klinfelter syndrome

Question 16

persistent allantois is associated with?

Answer 16

patent urachus and an allantoic cyst

Question 17

bifid ureters or paired unilateral ureters result from?

Answer 17

partial or complete division of ureteric bud/metanephric diverticulum

Question 18

ureteric bud or metanephric diverticulum is an outgrowth from? it is the primordial of what?

Answer 18

the mesonephric duct

- ureter, renal pelvis, calyces, and collecting tubules

Question 19

incomplete division of ureteric bud results in?

Answer 19

divided kidney w/ bifid ureter

Question 20

comlpete division of ureteric bud results in?

Answer 20

double kidney w/ bifid ureter or separate ureters

Question 21

A break or tear in the rectovaginal septum (fascia of Denonvilliers) can allow rectum to herniate into posterior vaginal wall, even to point of protrusion through vaginal introits- whats this called? Name if small intestine herniates thru?

Answer 21

• Rectocele

- enterocele