BIO 253 QUIZ 11 MOCK TEST AND STUDY
MATERIAL WITH PHYSIOLOGY SCENARIOS
AND APPLICATION QUESTIONS
◉ driving force for filtration.
Answer: hydrostatic pressure or BP
◉ What fluid comes out of the glomerulus.
Answer: filtrate
◉ What is filtrate.
Answer: mostly water, electrolytes, nutrients, and waste products.
Glucose is normal in filtrate.
-similar to blood plasma
◉ Reabsorption in the Nephron Loop.
Answer: Only water is absorbed in the descending limb. Na+
chloride is absorbed in the ascending limb (no water).
◉ Status of water coming out of nephron loop?.
Answer: @ Lowest concentration (diluted)
,◉ Process taking place in nephron loop?.
Answer: Countercurrent mechanism (dilutes the urine). Can also
create concentrated urine from the Na+ absorbed in the ascending
limb.
◉ tubular secretion.
Answer: -selectively moves substances from blood to filtrate in renal
tubules and collecting ducts
-From blood to tubular
-Usually in the distal tubule
-K+, H+, Uric acid, Penicillin are secreted
◉ Hormones that regulate kidney function.
Answer: directly :
ADH
Aldosterone
ANH
indirectly :
Renin (created by kidney)
Angiotensin
◉ Aldosterone function.
, Answer: -decreases sodium and water loss in urine by returning
sodium and water to the blood
◉ Aldosterone: Target Cells.
Answer: kidneys
◉ ANH function.
Answer: Tells kidneys that blood volume is too high, so dumps out
H20 and Na+
◉ Effects of ADH.
Answer: increases reabsorption of water from urine back into
plasma and therefore, decreases the volume of water that is excreted
-secreted by posterior pituitary gland
-when a person is dehydrated, hypothalamus makes them thirsty
and retains more water because of the ADH
◉ flow of urine through kidney.
Answer: Glomerulus
Bowmans Capsule
Proximal convoluted tubule
Loop of Henle
Distal convoluted tubule
MATERIAL WITH PHYSIOLOGY SCENARIOS
AND APPLICATION QUESTIONS
◉ driving force for filtration.
Answer: hydrostatic pressure or BP
◉ What fluid comes out of the glomerulus.
Answer: filtrate
◉ What is filtrate.
Answer: mostly water, electrolytes, nutrients, and waste products.
Glucose is normal in filtrate.
-similar to blood plasma
◉ Reabsorption in the Nephron Loop.
Answer: Only water is absorbed in the descending limb. Na+
chloride is absorbed in the ascending limb (no water).
◉ Status of water coming out of nephron loop?.
Answer: @ Lowest concentration (diluted)
,◉ Process taking place in nephron loop?.
Answer: Countercurrent mechanism (dilutes the urine). Can also
create concentrated urine from the Na+ absorbed in the ascending
limb.
◉ tubular secretion.
Answer: -selectively moves substances from blood to filtrate in renal
tubules and collecting ducts
-From blood to tubular
-Usually in the distal tubule
-K+, H+, Uric acid, Penicillin are secreted
◉ Hormones that regulate kidney function.
Answer: directly :
ADH
Aldosterone
ANH
indirectly :
Renin (created by kidney)
Angiotensin
◉ Aldosterone function.
, Answer: -decreases sodium and water loss in urine by returning
sodium and water to the blood
◉ Aldosterone: Target Cells.
Answer: kidneys
◉ ANH function.
Answer: Tells kidneys that blood volume is too high, so dumps out
H20 and Na+
◉ Effects of ADH.
Answer: increases reabsorption of water from urine back into
plasma and therefore, decreases the volume of water that is excreted
-secreted by posterior pituitary gland
-when a person is dehydrated, hypothalamus makes them thirsty
and retains more water because of the ADH
◉ flow of urine through kidney.
Answer: Glomerulus
Bowmans Capsule
Proximal convoluted tubule
Loop of Henle
Distal convoluted tubule
