BIO 253 QUIZ 11 COMPLETE PREPARATION
GUIDE WITH CELLULAR FUNCTION AND
TISSUE STRUCTURE REVIEW
◉ Organs of the Urinary system.
Answer: kidneys, ureters, urinary bladder, urethra
◉ draw and label a kidney with the following terms: Cortex, Medulla,
Pelvis, renal artery, renal vein, ureter, nephron.
Answer:
◉ functional unit of the kidney.
Answer: nephron
1 million per kidney!
◉ What parts make up the nephron?.
Answer: Renal corpuscle
Renal tubule
Glomerulus (capillaries that filter the blood plasma)
Bowman's capsule (surrounds the glomerulus)
Efferent arteriole
,loop of henle
◉ What is the glomerulus made of?.
Answer: capillaries
◉ Function of a nephron.
Answer: filter blood and produce urine
◉ Two nephron types.
Answer: juxtamedullary and cortical
◉ juxtamedullary nephrons.
Answer: -Long nephron loops deeply invade medulla
-Ascending limbs have thick and thin segments
-Important in production of concentrated urine
-found at the boundary of the cortex and medulla
◉ cortical nephrons.
Answer: -85% of all nephrons
-short nephron loops
-efferent arterioles branch into peritubular capillaries around PCT
and DCT
,◉ How is urine made in the kidney?.
Answer: 1.)Reabsorption - moving substances with tubule into the
blood.
2.)filtration - occurs in the glomerulus or renal corpuscle
3.)secretion
4.)filtration
◉ 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 :
GUIDE WITH CELLULAR FUNCTION AND
TISSUE STRUCTURE REVIEW
◉ Organs of the Urinary system.
Answer: kidneys, ureters, urinary bladder, urethra
◉ draw and label a kidney with the following terms: Cortex, Medulla,
Pelvis, renal artery, renal vein, ureter, nephron.
Answer:
◉ functional unit of the kidney.
Answer: nephron
1 million per kidney!
◉ What parts make up the nephron?.
Answer: Renal corpuscle
Renal tubule
Glomerulus (capillaries that filter the blood plasma)
Bowman's capsule (surrounds the glomerulus)
Efferent arteriole
,loop of henle
◉ What is the glomerulus made of?.
Answer: capillaries
◉ Function of a nephron.
Answer: filter blood and produce urine
◉ Two nephron types.
Answer: juxtamedullary and cortical
◉ juxtamedullary nephrons.
Answer: -Long nephron loops deeply invade medulla
-Ascending limbs have thick and thin segments
-Important in production of concentrated urine
-found at the boundary of the cortex and medulla
◉ cortical nephrons.
Answer: -85% of all nephrons
-short nephron loops
-efferent arterioles branch into peritubular capillaries around PCT
and DCT
,◉ How is urine made in the kidney?.
Answer: 1.)Reabsorption - moving substances with tubule into the
blood.
2.)filtration - occurs in the glomerulus or renal corpuscle
3.)secretion
4.)filtration
◉ 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 :
