Quiz
State True or False
1. The urinary system develops from
a. Lateral plate mesoderm.
b. Endoderm.
c. Splanchnic mesoderm.
d. Intermediate mesoderm.
e. Ectoderm.
2. The kidneys
a. Develop from the mesonephric tubules.
b. All the sets of kidneys are functional.
c. Initially develop at the level of 1st lumbar vertebra.
d. Have epithelial element derived from ectoderm.
e. Start to develop during fourth week of gestation.
3. The first two sets of kidneys
a. Are the pronephros and the metanephros.
b. Are the pronephros and the mesonephros.
c. Both are non functional.
d. Ducts of both of the kidneys open into the cloaca.
e. Ducts of both the kidneys persist.
4. Permanent kidney
a. Initially develops in the pelvis.
b. Is mesodermal in origin.
c. Has an excretory part that develops from ureteric bud.
d. Develops from three sources.
e. Is also called the metanephros.
5. Collecting duct of the permanent kidney develops from the
a. Metanephric blastema.
b. Ureteric bud.
c. Mesonephric duct.
d. Splanchnic mesoderm.
e. Mesonephric tubule.
6. The urinary bladder
a. Is a derivative of hind gut.
b. Is entirely derived from the endoderm.
c. Is formed from the mesoderm.
d. Is a derivative of the urogenital sinus.
e. Epithelial lining is derived from the splanchnic mesenchyme.
7. The trigone of the bladder is formed by
a. Incorporation of the lower end of mesonephric ducts.
b. Incorporation of the lower end of the pronephric duct.
c. Incorporation of the metanephric blastema.
d. Incorporation of the mesonephric tubules.
e. Incorporation of the pronephric tubules.
8. Derivates of the urogenital sinus
a. Urinary bladder.
b. Ejaculatory ducts.
c. Entire urethra in males.
d. Entire urethra in females.
e. Bulbous urethra in males.
9. The urachus is a remnant of
a. Urogenital sinus.
b. Urogenital ridge.
c. Allantois.
d. Cloaca.
e. Mesonephric duct.
10. Regarding congenital anomalies
a. Renal agenesis occurs predominantly in females.
b. Bilateral renal agenesis is compatible with life.
c. Horseshoe kidney is the most common occurring renal fusion anomaly.
d. Exposure of the anterior wall to the exterior is termed as exstrophy of the bladder.
e. Urachal anomaly occurs when the allantois persist.
a. Lateral plate mesoderm.
b. Endoderm.
c. Splanchnic mesoderm.
d. Intermediate mesoderm.
e. Ectoderm.
2. The kidneys
a. Develop from the mesonephric tubules.
b. All the sets of kidneys are functional.
c. Initially develop at the level of 1st lumbar vertebra.
d. Have epithelial element derived from ectoderm.
e. Start to develop during fourth week of gestation.
3. The first two sets of kidneys
a. Are the pronephros and the metanephros.
b. Are the pronephros and the mesonephros.
c. Both are non functional.
d. Ducts of both of the kidneys open into the cloaca.
e. Ducts of both the kidneys persist.
4. Permanent kidney
a. Initially develops in the pelvis.
b. Is mesodermal in origin.
c. Has an excretory part that develops from ureteric bud.
d. Develops from three sources.
e. Is also called the metanephros.
5. Collecting duct of the permanent kidney develops from the
a. Metanephric blastema.
b. Ureteric bud.
c. Mesonephric duct.
d. Splanchnic mesoderm.
e. Mesonephric tubule.
6. The urinary bladder
a. Is a derivative of hind gut.
b. Is entirely derived from the endoderm.
c. Is formed from the mesoderm.
d. Is a derivative of the urogenital sinus.
e. Epithelial lining is derived from the splanchnic mesenchyme.
7. The trigone of the bladder is formed by
a. Incorporation of the lower end of mesonephric ducts.
b. Incorporation of the lower end of the pronephric duct.
c. Incorporation of the metanephric blastema.
d. Incorporation of the mesonephric tubules.
e. Incorporation of the pronephric tubules.
8. Derivates of the urogenital sinus
a. Urinary bladder.
b. Ejaculatory ducts.
c. Entire urethra in males.
d. Entire urethra in females.
e. Bulbous urethra in males.
9. The urachus is a remnant of
a. Urogenital sinus.
b. Urogenital ridge.
c. Allantois.
d. Cloaca.
e. Mesonephric duct.
10. Regarding congenital anomalies
a. Renal agenesis occurs predominantly in females.
b. Bilateral renal agenesis is compatible with life.
c. Horseshoe kidney is the most common occurring renal fusion anomaly.
d. Exposure of the anterior wall to the exterior is termed as exstrophy of the bladder.
e. Urachal anomaly occurs when the allantois persist.
MCQs
nephrogenic cord urogenital ridge pronephros mesonephros metanephros ureteric bud wolffian duct cloaca metanephric blastema metanephric duct allantois urachus pronephric duct mesonephric duct urogenital sinus hilum urorectal sinuns renal vesicle renal corpuscle renal agenesis vesical part pelvic part phallic part renal fusion ectopic kidney bladder exstrophy urachal anomaly ectopic ureter
11. Large and elongated extending from the upper thoracic to upper lumbar segments.
12. It consists of the Bowman's capsule and glomerulus.
13. These are also known as the wolffian ducts.
14. Most cranial set of kidneys.
15. Give rise to the nephrons of the permanent kidney.
16. They appear as lobulated stuctures during development.
17. Is continuous with the allantois.
18. In the adults is represented by the median umbilical ligament.
19. Forms the trigone of the bladder.
20. Divides the cloaca into two parts.
21. It forms the entire female urethra.
22. It is characterised by Potter syndrome.
23. Horseshoe kidney is an example of this anoamly.
24. It may lead to UTI and pyelonepritis.
25. The allantois persists in this condition.
11. Large and elongated extending from the upper thoracic to upper lumbar segments.
12. It consists of the Bowman's capsule and glomerulus.
13. These are also known as the wolffian ducts.
14. Most cranial set of kidneys.
15. Give rise to the nephrons of the permanent kidney.
16. They appear as lobulated stuctures during development.
17. Is continuous with the allantois.
18. In the adults is represented by the median umbilical ligament.
19. Forms the trigone of the bladder.
20. Divides the cloaca into two parts.
21. It forms the entire female urethra.
22. It is characterised by Potter syndrome.
23. Horseshoe kidney is an example of this anoamly.
24. It may lead to UTI and pyelonepritis.
25. The allantois persists in this condition.
Diagrams
26. a. Identify structure A
b. What is the source of structure A
b. What is the source of structure A
27. a. Identify structure A
b. What does structure B gives rise to
b. What does structure B gives rise to
28. a. Identify structure A
b. Identify structure B
b. Identify structure B
29. a. Identify structure A
b. Identify structure B
b. Identify structure B
30. a. Identify type of abnormality
b. This anomaly is common in which sex
b. This anomaly is common in which sex