Urinary Stystem Flashcards
Describe the urethra
Carry urine from the kidneys to the bladder
10-12 inches long
Describe the bladder
Muscular sac in pelvis Stored urine (allows it to be infrequent and involuntary)
Where is urine made
In the kidneys
Describe the urethra
Tube that carries ur one from bladder to outside of the body
What are the functions of the kidneys
Regulate body fluid volume Electrolyte balance Formation of urine Acid base balance Production of hormones and enzymes Activation of vitD
Where is the glomerulus located
In the nephrons
What is the formation of urine
Filtration
Reabsorption
Secretion
What is the pathway of urine
Ureters > urinary bladder > urethra
What is the discharge of urine called
Micturition
What does aldosterone do
Stimulate sodium absorption and potassium excretion
When is atrial natriuretic released
When blood volume gets too high
What does an anti diuretic hormone do
^ADH increase in water reabsorption in collecting duct
ADH decrease in water reabsorption and ^ in urine excretion
How do the kidneys help maintain acid base balance
By excreting hydrogen ions into the urine and reabsorbing bicarbonate from the urine
How do the kidneys maintain haemostasis
Through excretion of waste products
What can cause chronic kidney failure
High blood pressure
Nephron glomeruli damaged and lose ability to filter blood
