Urogenital System Development (Reynolds)-6 questions

Question 1

Arrange kidney types in order?

Answer 1

Three regions:
Pronephros; primitive amphibian
Mesonephros; fish
Metanephros; man

Question 2

Mesonephric Duct has what duct? This duct shoots out duct known as?

Answer 2

Primary mesonephric ducts; ureteric bud

Question 3

Metanephric blastema

Answer 3

cells surrounding metanephric duct (excretory portion)

Question 4

Base of allantois forms

Answer 4

urinary bladder

Question 5

Bilateral renal agenesis

Answer 5

no kidney!

Question 6

Horseshoe kidney

Answer 6

Inapproriate fusion of Metanephric blastemal. Fuse to early won’t migrate well.

Question 7

3 ureter due to?

Answer 7

They are documented to be functional. Why would this happen? 2 ureteric buds shooting out.

Question 8

Urachal fistuala

Answer 8

Urine is leaked out of belly button. Leak out intestinal content in umbilicus.

Question 9

Paramesonephric ducts stays in the?

Answer 9

female tubes (fallopian tubes and part of the uterus)—

Question 10

Mesonephric ducts who has it?

Answer 10

Everyone! Mesenephric duct will form male specific tubes.

Question 11

Mesenephric ducts stays in?

Answer 11

males—MM

Question 12

The ureteric buds are derived from

Answer 12

Intermediate mesoderm –( mesonephrus)

Question 13

The _____________________ persist in females and contribute to reproductive structures.

Answer 13

Paramesonephric ducts

Question 14

The renal defect that involves inadequate amounts of urine production in utero is called ___________.

Answer 14

Oligohydramnios (aka Potter’s syndrome)

Question 15

The renal defect that involves anomalous fusion of the metanephric blastema is called ___________.

Answer 15

Horseshoe kidney

Question 16

The renal defect that involves a persistent allantois is called ___________.

Answer 16

Urachal fistula

Question 17

Three Functions of the Urinary System

Answer 17

1. Excretion
   Removal of organic wastes from body fluids
2. Elimination
   Discharge of waste products
3. Homeostatic regulation
   Of blood plasma volume and solute concentration

Question 18

Homeostatic Functions of the Urinary System

Answer 18

Regulates blood volume and blood pressure
—By adjusting volume of water lost in urine
—Releasing erythropoietin and renin
Regulates plasma ion concentrations
—Sodium, potassium, and chloride ions (by controlling quantities lost in urine)
—Calcium ion levels (through synthesis of calcitriol)

Question 19

Epithelium of the kidney—glomerulus?

Answer 19

simple squamous epithelium.

Question 20

Epithelium-Ducts (Proximal Convulated Tubule and Distal Convulated Tubule)

Answer 20

Simple cuboidal epithelium

Question 21

Connective tissue in Renal Corpuscle/glomerulus?

Answer 21

Loose connected tissue.

Question 22

Bowman’s capsule epithelium?

Answer 22

simple squamous epithelium

Question 23

capillaries and other vessels of kidney epithelium?

Answer 23

simple squamous epithelium

Question 24

Which duct has microvilli (PCT or DCT)?

Answer 24

Proximal Convulated Tubule

Question 25

Epithelium of urethra?

Answer 25

Stratified squamous epithelium

Question 26

Dense CT on?

Answer 26

outside (fat for shock absorption)

Question 27

Support cell types?

Answer 27

Fibroblast, macrophages

Question 28

What are the kidneys 3 concentric layers of CT?

Answer 28

Fibrous capsule
Perinephric fat capsule
Renal fascia

Question 29

Tissue of renal corpuscle?

Answer 29

Simple squamous epithelium