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Kidney part two
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Kidney stones
Renal calculi
Inflammation of the urethra
Urethritis
Inflammation of the urinary bladder
Cystitis
inflammation of the nephrons in the kidneys
Nephritis
inflammation of the glomeruli, or small blood vessels in the kidneys
glomerulonephritis
the presence of an excess of serum proteins in the urine
proteinuria
_____ means swelling caused by fluid in your body's tissues
Edema
_____ measures the amount of nitrogen in your blood that comes from the waste product urea
BUN test blood urea nitrogen test
What is responsible for urine production?
Nephrons
What 4 things does the renal tubule consist of?
Bowmans capsule
proximal convoluted tubule
loop of henle
distal convoluted tubule
Approx what percent of cardiac output is filtered through the kidney each minute?
25%
What 2 things does the renal corpuscle consist of?
Glomerulus
Bowmans capsule
What feeds the glomerulus?
Afferent arterioles
Where does the production of protein free filtrate take place?
Glomerulus
The glomerulus works (passive/active) and work under (high/low) pressure.
Passive
low
Approx. _____ml/minute of
blood
is filtered through kidneys. _____% cardiac output.
1200
20%
_____ml per minute of filtrate is produced in the glomerulus, this is called the _____.
125 ml
Glomerular filtratration rate
Reabsorption of filtrate takes place in the _____.
Tubules
The endothelium of the glomerulus has what type of epithelium?
Squamous
What does the inner layer of the bowmans capsule consist of? and what is their main funtion?
Podocytes
filtration through the slits
Afferent arterioles come from _____ arteries
interlobular
Efferent arteioles go to _____ capillaries
peritubular
Afferent or efferent:
Does not get filtered
Efferent
What is the funtion of the podocytes?
Filtration of big particles through slits.
Osmosis concentration goes from _____ to _____.
High to low
What is the glomerular filtration pressure?
10mm Hg
What are the 2 things that OPPOSES the outward Hydrostatic pressure? and how much pressure does it oppose?
Osmotic pressure of blood 30 mm Hg
Glomerular capsule fluid pressure 15 mm Hg
What promotes and outward flow against opposing pressure during glomerular filtration and how much pressure does it promote?
Glomerular hydrostatic pressure 55 mm Hg
The collecting duct dumps into _____.
Minor calyx
Major calyx dumps into _____.
Pelvis
The peritubular capillaries in the juxtamedullary nephrons go to _____ then go to _____.
Vasa recta
veins
Specialized peritubular capillaries around loop of henle used for urine concentration.
Vasa recta
Fluid loss
Diuretic
where does the reabsorption of Na, K and glucose take place and what kind of transport does it require
Proximal convoluted tubule and loop of henle
active transport ( requires energy )
Where does reabsorption of Cl take place by diffusion?
Proximal convoluted tubule and loop of henle
What happens in reabsorption?
Secretions go out to the peritubular capillaries
What happens in secretions?
Fluid goes into tubules
Obligatory water reabsorption by osmosis happens where?
Proximal convoluted tubule and loop of henle
Secreations by certain drugs by active transport happens in ?
Proximal convoluted tubule and loop of henle
Secretions of hydrogen ions including H and K take place in ?
Distal convoluted tubule
Where does reabsorption of sodium take place by active transport?
Distal convoluted tubule
_____ controls the reabsorption of water
anti diuretic
reabsorption of water by osmosis takes place in?
Collecting tubules
What is the cuff of smooth muscle around afferent arteriole and what is its function?
juxtaglomerular cells
releasis renin when b/p is low
_____ Is sensitive to decreased concentration of Na ( decreased B/P)
Macula densa
What releases renin into blood stream?
Juxtamedullary apparatus
What are 2 ways renin is released into blood stream? what type of cells is it sensed by and where is it located?
Pressure receptors- juxtamedullary cells of afferent arteriole
Chemoreceptos- macula densa in distal convoluted tubule
the chemoreceptors or macula densa respond to what ?
Decreased sodium
Where is renin made?
liver
renin is released in blood in response to ?
low blood pressure
_____ is a plasma protein that gets activated if you have renin.
Angiotensinogen
_____ is a polypeptide that gets activated by angiotensinogen.
Angiotensin I
what is the enzyme that converts angiotensin I to angiotensin II?
Ace enzyme angiotension converting enzyme
_____ is a potent vasoconstrictor.
Angiotensin II
_____ is a sodium retaining hormone, highers blood pressure.
Aldosterone
What are the 2 functions of angiotension II
Vasoconstriction
stimulation of aldosterone
What do anti diuretics do to blood pressure?
Increase blood pressure
Author
Floe
ID
149444
Card Set
Kidney part two
Description
Anatomy
Updated
2012-04-25T23:25:57Z
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