Genitourinary Embryology 2

54 Questions | By Spirit1flyer

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Test on the urinary tract embryology

Questions and Answers

1.

Arises from intermediate mesodermic tissue.
- A.
  
  Pronephros
- B.
  
  Mesonephros
- C.
  
  Metanephros
2.

Opens into a pair of primary ducts and extends caudally and opens into cloaca.
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
3.

Which developmental stage disappears after week 4 of life?
- A.
  
  Metanephros
- B.
  
  Pronephros
- C.
  
  Mesonephros
4.

Adjacent to somites 4 through 14.
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
5.

It is the principal excretory organ during early embryonic life.
- A.
  
  Pronephros
- B.
  
  Mesonephros
- C.
  
  Metanephros
6.

Contains structures similar to the nephron of the mature kidney.
- A.
  
  Pronephros
- B.
  
  Mesonephros
- C.
  
  Metanephros
7.

Composed of as many as ten pairs of simple straight tubules.
- A.
  
  Pronephros
- B.
  
  Mesonephros
- C.
  
  Metanephros
8.

Choose the correct order for developmental stages.
- A.
  
  Metanephros,Pronephros, Mesonephros
- B.
  
  Pronephros, Metanephros, Mesonephros
- C.
  
  Pronephros, Mesonephros, Metanephros
- D.
  
  Metanephros, Mesonephros, Pronephros
9.

Final Stage of renal development
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
10.

Originates as buds from mesonephric duct that joins the cloaca during the 8th week of life.
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
11.

Most primitive renal structures in humans?
- A.
  
  Pronephros
- B.
  
  Mesonephros
- C.
  
  Metanephros
12.

Develops a cup-like outgrowth into which a knot of capillaries is pushed. AKA: Bowman's capsule.
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
13.

Composed of metemorphic tubules.
- A.
  
  Pronephros
- B.
  
  Mesonephros
- C.
  
  Metanephros
14.

What tissue forms the loop of Henle?
- A.
  
  Mesonephric
- B.
  
  Methanephric
- C.
  
  Pronephros
15.

Degenerates around the 8th week of life.
- A.
  
  Pronephros
- B.
  
  Mesonephros
- C.
  
  Metanephros
16.

Remnants contribute to development of male genital system.
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
17.

Metonephric cap continues to grow.
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
18.

The ureteral bud expands to form renal pelvis.
- A.
  
  Pronephros
- B.
  
  Metanephros
- C.
  
  Mesonephros
19.

What stage are ureters developed in?
- A.
  
  Metanephros
- B.
  
  Mesonephros
- C.
  
  Pronephros
20.

The ureteral bud originates from where?
- A.
  
  Renal Duct
- B.
  
  Wolf Duct
- C.
  
  Sinus Duct
- D.
  
  Wolffian Duct
21.

Numerous outgrowth from renal pelvis from the primary collecting ducts occurs in what stage?
- A.
  
  Mesonephros
- B.
  
  Pronephros
- C.
  
  Metanephros
22.

The ureter ascends and rotates to a _____degree angle from the kidney.
- A.
  
  60
- B.
  
  90
- C.
  
  120
23.

The renal pelvis pushes into the developing ___________ to form collecting ducts.
- A.
  
  Parenchyma
- B.
  
  Mullerian
- C.
  
  Endodermal
24.

The urinary bladder develops from what tissue?
- A.
  
  Mesodermal
- B.
  
  Methanephric
- C.
  
  Endodermal
25.

The ventral portion of the urogenital sinus forms the _______________.
- A.
  
  Bladder
- B.
  
  Ureters
- C.
  
  Trigone
26.

During embryogenesis, the fetus develops genital structures that are influenced by the presence or absence of _____________.
- A.
  
  Uterus
- B.
  
  Bacteria
- C.
  
  Testis
- D.
  
  Hormones
27.

The ventral portion of the urogenital sinus forms ___________.
- A.
  
  Proximal urethra of females
- B.
  
  Proximal urethra of males
- C.
  
  Urethra of males
- D.
  
  Bladder of female only
28.

The ventral portion of the urogenital sinus forms ___________.
- A.
  
  Bladder and entire urethra of females
- B.
  
  Bladder and entire urethra of males
- C.
  
  Bladder only of males
- D.
  
  Urethra only
29.

Endodermal tissue from the dorsal portion of the urogenital sinus forms what?
- A.
  
  Distal urethra
- B.
  
  Proximal urethra
- C.
  
  Entire urethra
30.

The location between the uterus and labia majora becomes what?
- A.
  
  Ovarian ligament
- B.
  
  Round ligament
- C.
  
  Long ligament
31.

The ____________ is formed by mesodermal tissue that lays between common excretory duct and the ureteral bud.
- A.
  
  Urogenital sinus
- B.
  
  Trigone
- C.
  
  Wolffian Duct
- D.
  
  Parenchyma
32.

When does the Mullerian ductile system start to turn into ovaries?
- A.
  
  Week 4
- B.
  
  Week 7
- C.
  
  Week 8
33.

What do the ovaries attach to?
- A.
  
  Gubernaculum
- B.
  
  Mullerian
- C.
  
  Mesonephric
34.

The Gubernaculum is located where?
- A.
  
  Between the uterus and ovary
- B.
  
  Between the ovary and fallopian tubes
- C.
  
  Between the ovary and ovarian ligament
35.

The gubernaculum becomes what
- A.
  
  Round ligament
- B.
  
  Labia majora
- C.
  
  Ovarian ligament
36.

'what do the uterine/fallopian tubes develop from?
- A.
  
  Mullerian duct
- B.
  
  Sinus duct
- C.
  
  Round ligament
- D.
  
  Gubernaculum
37.

The two mullerian ducts join together but have?
- A.
  
  A partial fusion with a septum
- B.
  
  A total fusion with a septum
- C.
  
  A partial fusion without a septum
- D.
  
  A total fusion without a septum
38.

The mullerian ducts form the uterovaginal canal and the septum disappears?
- A.
  
  True
- B.
  
  False
39.

The mullerian ducts fuse when?
- A.
  
  13th week
- B.
  
  12th week
- C.
  
  8th week
40.

The sinovaginal node receives a limited contribution from what?
- A.
  
  Urogenital sinus
- B.
  
  Mesonephric duct
- C.
  
  Hymen
41.

The Hymen is the what?
- A.
  
  The remains of the testis
- B.
  
  The remains of the mullerian tubercle
- C.
  
  The labia minora
42.

The Labia minora is formed from?
- A.
  
  Urethral folds
- B.
  
  Ureter folds
- C.
  
  Urethral lips
- D.
  
  Mullerian remains
43.

The gonad forms into either the testis or ovary at what week?
- A.
  
  7
- B.
  
  8
- C.
  
  12
44.

The gland (gonad) does what if it became a testis?
- A.
  
  Increases in size and becomes more caudal located.
- B.
  
  Decreases in size and becomes more caudal located.
- C.
  
  Shortens into a compact organ
- D.
  
  A and C
- E.
  
  A and B
45.

The network of strands form that is continuous with the testis cords
- A.
  
  True
- B.
  
  False
46.

The functioning unit of the testis is the seminiferous tubules
- A.
  
  True
- B.
  
  False
47.

Spermatozoa is produced in the seminiferous tubules
- A.
  
  True
- B.
  
  False
48.

The testis remain where until the seventh month?
- A.
  
  Abdominal end of the inguinal canal
- B.
  
  Scrotal sac
- C.
  
  Mullerian duct
49.

Passes through the inguinal canal at the 8th month
- A.
  
  Testis
- B.
  
  Ovaries
- C.
  
  Uterus
50.

The Genital tubercle forms what?
- A.
  
  Phallus
- B.
  
  Corpora cavernosa
- C.
  
  Urogenital sinus orifice
51.

Paired mesenchymal columns within the shaft of the penis
- A.
  
  Corpora cavernosa
- B.
  
  Circular coronary sulcus
- C.
  
  Glands penis
- D.
  
  Penile urethra
52.

What happens at the 10th week?
- A.
  
  Urethral folds start to fuse
- B.
  
  The fusion is complete
- C.
  
  The glans penis becomes defined
53.

What happens at the 14th week
- A.
  
  The glans penis becomes defined
- B.
  
  Urethral folds start to fuse
- C.
  
  The fusion is complete
54.

What starts growth during the 3th month and finishes 2 months later and surrounds the glans
- A.
  
  Foreskin
- B.
  
  Prepuce
- C.
  
  Bladder neck
- D.
  
  Issu

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