S9 L1 Embryology of the Urinary System Flashcards
1
Q
3 Seperate Kidneys From
- Names of the 3 systems that develop sequentially…
- What happens in this development… (what happens to the ‘system’ prior to the one that is now developing…)
A
2
Q
Where do kidneys develop from? (clue: trilaminar disc)
slide 4
A
3
Q
Label this diagram
A
4
Q
Step 1: The Pronephros
- What is this?
- Why does it occur
- Describe what happens in this development…
A
5
Q
Step 2: Mesonephros
- How does this develop? i.e. what does it develop from…
- What structures consist of an embryonic kidney?
- What can this ‘system’ (i.e. the mesonephros do at this stage?)
- How does this structure link to another system?
A
6
Q
Mesonephros:
- Role in…
- What other important structure does it form?
A
7
Q
Step 3: The Metanephros
- How does this form?
- What does it form from?
- Role of uretertic bud?
- What happens in the tissue around the ureteric bud?
A
8
Q
How does the Kidney form?
- Be specific about how each different parts of the kidney form…
A
9
Q
Development of the Renal Functional Unit: (bit of a recap)
- Ureteric bud drives the development of the definitive kidney…
- Which structure develops from the ureteric bud?
- Which structure develops from the metanephric blastema?
A
10
Q
3 main stage - Recap
- The position each of the main stages take place…
A
11
Q
The Ascent of the Kidney
- Starts when…?
- Describe the ascent of the kidney
A
12
Q
What happens to the kidney and gonad position
A
13
Q
When things go wrong 1/2
- Ureteric bud fails to interact with intermediate mesoderm… Renal agenesis
- What does this lead to?
- Migration goes awry
A
- Kidneys fail to develop, could be unilateral or bilateral
- Pelvic kidney
Horseshoe Kidney
(see pic attached)
14
Q
When things go wrong 2/2
- Duplication defects and Ectopic Urethral orificies
- What happens here? What does this lead to?
A
15
Q
Development of the Uro-genital and GI tracts
- Development of which systems is closely linked?
- Common opening of all three systems is called…
- Is this common membrane (begins with C), closed or open to the outside?
A
16
Q
Urogential sinus
- How is the urogenital sinus created?
- How is the urogenital sinus linked with the umbilica?
- Which part of the urogenital sinus is the bladder and urethra formed from in M and F (slightly different in each)
- What happens to the mesonephric duct?
slide 22
A
