Urinary System Flashcards
What’s the general function of the urinary system?
Maintain Homoeostasis
What’s the 7 specific functions of the urinary system?
- Control of water balance
- Control of pH
- Control of electrolyte balance (removal of sodium)
- Control of blood pressure (by the renin/angiotensin mechanism)
- Control of erythropoiesis (red blood cell production)
- Excretion of drugs and toxins
- Excretion of nitrogenous waste products (urea, uric acid & creatinine)
What’s the anatomical structures of the urinary system?
2 Kidneys
2 Ureters
1 Urinary Bladder
1 Urethra
What’s the average kidney size?
11cm x 5cm x 3cm
What level does the kidney start and finish at?
Starts at T12 and ends at L3
What kidney is higher, left or right?
Left
What’s is the centre of the concavity of the kidney called?
Renal hilus
Name the 3 layers of the kidney
Renal Capsule (Inner layer) Adipose Capsule Renal Fascia (Outer layer)
What’s the name of the cortical substance found between the pyramids of kidneys?
Renal columns
What is the cortex of the kidney?
The surrounding area around the pyramids of the kidney
What are the 5-14 striated triangular structures called within kidneys?
Renal medullary pyramids
What’s the name of the structures attached to the Renal medullary pyramids?
Renal Pelvis
Renal Calyces
What’s the name of the combination of the renal cortex and the renal medullary pyramids?
Renal Parenchyma
Name the 3 parts to the ureter
Pelvis of ureter
Abdominal ureter
Pelvic ureter
How does urine from the kidney reach the bladder?
Peristalsis
Where and what is the Trigone?
Found within the urinary bladder and connects the right and left openings of the ureters
Where and what is the Urethral orifice?
Found within the urinary bladder and is where urine exits
Name the 3 layers of the Urinary bladder
Rugae of mucosa (Inner layer)
Detrusor muscle
Serosa (Outer layer)
What’s Dysuria?
Painful Urination
What’s Enuresis?
Bed Wetting
What’s Polyuria?
Excessive Urine Production
What’s Uraemia?
Toxic Levels of Urea in blood
What’s Haematuria?
Blood in the urine (this can visible or non-visible)