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19 Cards in this Set
- Front
- Back
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EXAM 3 ANATOMY LECTURE 29: URINARY SYSTEM
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EXAM 3 ANATOMY LECTURE 29: URINARY SYSTEM
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What are the main waste products produced by the urinary system?
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1. urea
2. uric acid 3. creatinine |
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What does the urinary system composed of?
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1. 2 kidneys
2. 2 ureters 3. 1 urinary bladder 4. 1 urethra |
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Are the kidneys retroperitoneal organs?
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Yes, because they have the peritoneum on the anterior side.
NOTE: retro: means behind, or behind the peritoneum. |
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What region of the spine are the kidneys located in?
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T12-L3
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What are the coverings of the kidneys?
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From inner to outer:
1. fibrous capsule 2. perirenal fat 3. renal fascia 4. pararenal fat |
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What is the sequence of urinary flow?
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In order:
1. renal pyramid 2. minor calyx 3. major calyx 4. renal pelvis 5. ureter 6. bladder |
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Hilus
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Opening into the kidney.
A depression or pit where structures are attached. Transmits renal vessel and ureter. The ureter leaves/enters the kidney through the hilus. |
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Renal sinus
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Central space containing the renal pelvis.
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Renal pelvis
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It's the beginning of the ureter and it is inside the renal sinus.
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Blood flow through the kidneys:
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In order:
1. aorta 2. renal artery 3. segmented artery 4. interlobar artery 5. arcuate artery 6. cortical radiate artery 7. afferent arteriole 8. glomerulus (capillaries) 9. efferent arteriole 10. peritubular capillaries and vasa recta 11. cortical radiate vein 12. arcuate vein 13. interlobar vein 14. renal vein 15. IVC |
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Podocytes
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Cells of the Bowman's capsule
Wrap around the capillaries of the glomerulus leaving slits between them. Blood is filtered through these slits. |
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Physical filtration takes place through a "system" consisting of?
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1. Fenestrated epithelium
2. filtration slits in podocytes 3. basement membrane |
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Macula densa
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Chemoreceptors for solute concentration.
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What is the function of granular cells?
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Produce renin to increase BP
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What do mesangial cells do?
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Regulate blood flow in glomerulus.
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Micturition
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Urination
Under parasym control |
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Epithelium of the Bowman's Capsule
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Simple squamous
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Epithelium of the bladder, ureter, pelvis are:
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Transitional
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