Bio 253 Final Exam Test Questions With Answers
Graded A+
Organelles are - ANSWER - -found at the boundary of the cortex and medulla
Organs of the Urinary system - ANSWER - cortical nephrons - ANSWER --85% of all
kidneys, ureters, urinary bladder, urethra nephrons
-short nephron loops
-efferent arterioles branch into peritubular
draw and label a kidney with the following terms: capillaries around PCT and DCT
Cortex, Medulla, Pelvis, renal artery, renal vein,
ureter, nephron - ANSWER -
How is urine made in the kidney? -
ANSWER -1.)Reabsorption - moving
functional unit of the kidney - ANSWER - substances with tubule into the blood.
nephron 2.)filtration - occurs in the glomerulus or renal
1 million per kidney! corpuscle
3.)secretion
4.)filtration
What parts make up the nephron? -
ANSWER -Renal corpuscle
Renal tubule driving force for filtration - ANSWER -
Glomerulus (capillaries that filter the blood hydrostatic pressure or BP
plasma)
Bowman's capsule (surrounds the glomerulus)
Efferent arteriole What fluid comes out of the glomerulus? -
loop of henle ANSWER -filtrate
What is the glomerulus made of? - What is filtrate? - ANSWER -mostly water,
ANSWER -capillaries electrolytes, nutrients, and waste products.
Glucose is normal in filtrate.
-similar to blood plasma
Function of a nephron - ANSWER -filter
blood and produce urine
Reabsorption in the Nephron Loop -
ANSWER -Only water is absorbed in the
Two nephron types - ANSWER - descending limb. Na+ chloride is absorbed in the
juxtamedullary and cortical ascending limb (no water).
juxtamedullary nephrons - ANSWER --Long Status of water coming out of nephron loop? -
nephron loops deeply invade medulla ANSWER -@ Lowest concentration
-Ascending limbs have thick and thin segments (diluted)
-Important in production of concentrated urine
, Bio 253 Final Exam Test Questions With Answers
Graded A+
water that is excreted
Process taking place in nephron loop? - -secreted by posterior pituitary gland
ANSWER -Countercurrent mechanism -when a person is dehydrated, hypothalamus
(dilutes the urine). Can also create concentrated makes them thirsty and retains more water
urine from the Na+ absorbed in the ascending because of the ADH
limb.
flow of urine through kidney - ANSWER -
tubular secretion - ANSWER --selectively Glomerulus
moves substances from blood to filtrate in renal Bowmans Capsule
tubules and collecting ducts Proximal convoluted tubule
-From blood to tubular Loop of Henle
-Usually in the distal tubule Distal convoluted tubule
-K+, H+, Uric acid, Penicillin are secreted Collecting duct
Papillary duct
Minor calyx
Hormones that regulate kidney function - Major calyx
ANSWER -directly : Renal pelvis
ADH Ureter
Aldosterone Urinary Bladder
ANH Urethra
indirectly :
Renin (created by kidney)
Angiotensin Needed to form a blood clot - ANSWER -
Ca+, K+, fibrinogen, platlets
Aldosterone function - ANSWER --
decreases sodium and water loss in urine by Hepatic drains blood from - ANSWER -
returning sodium and water to the blood small intestine, spleen, pancreas, stomach
supplies the liver with blood form the aorta
Aldosterone: Target Cells - ANSWER -
kidneys
Parts of the nephron in order - ANSWER -
Bowmans Capsule -> Proximal Tubule -> Loop of
ANH function - ANSWER -Tells kidneys Henle -> Distal Tubule -> Collecting duct
that blood volume is too high, so dumps out H20
and Na+
function of upper respiratory tract -
ANSWER -filters, warms, and humidifies air
Effects of ADH - ANSWER -increases
reabsorption of water from urine back into
plasma and therefore, decreases the volume of function of lower respiratory tract -
ANSWER -Transports air to lungs for gas
Graded A+
Organelles are - ANSWER - -found at the boundary of the cortex and medulla
Organs of the Urinary system - ANSWER - cortical nephrons - ANSWER --85% of all
kidneys, ureters, urinary bladder, urethra nephrons
-short nephron loops
-efferent arterioles branch into peritubular
draw and label a kidney with the following terms: capillaries around PCT and DCT
Cortex, Medulla, Pelvis, renal artery, renal vein,
ureter, nephron - ANSWER -
How is urine made in the kidney? -
ANSWER -1.)Reabsorption - moving
functional unit of the kidney - ANSWER - substances with tubule into the blood.
nephron 2.)filtration - occurs in the glomerulus or renal
1 million per kidney! corpuscle
3.)secretion
4.)filtration
What parts make up the nephron? -
ANSWER -Renal corpuscle
Renal tubule driving force for filtration - ANSWER -
Glomerulus (capillaries that filter the blood hydrostatic pressure or BP
plasma)
Bowman's capsule (surrounds the glomerulus)
Efferent arteriole What fluid comes out of the glomerulus? -
loop of henle ANSWER -filtrate
What is the glomerulus made of? - What is filtrate? - ANSWER -mostly water,
ANSWER -capillaries electrolytes, nutrients, and waste products.
Glucose is normal in filtrate.
-similar to blood plasma
Function of a nephron - ANSWER -filter
blood and produce urine
Reabsorption in the Nephron Loop -
ANSWER -Only water is absorbed in the
Two nephron types - ANSWER - descending limb. Na+ chloride is absorbed in the
juxtamedullary and cortical ascending limb (no water).
juxtamedullary nephrons - ANSWER --Long Status of water coming out of nephron loop? -
nephron loops deeply invade medulla ANSWER -@ Lowest concentration
-Ascending limbs have thick and thin segments (diluted)
-Important in production of concentrated urine
, Bio 253 Final Exam Test Questions With Answers
Graded A+
water that is excreted
Process taking place in nephron loop? - -secreted by posterior pituitary gland
ANSWER -Countercurrent mechanism -when a person is dehydrated, hypothalamus
(dilutes the urine). Can also create concentrated makes them thirsty and retains more water
urine from the Na+ absorbed in the ascending because of the ADH
limb.
flow of urine through kidney - ANSWER -
tubular secretion - ANSWER --selectively Glomerulus
moves substances from blood to filtrate in renal Bowmans Capsule
tubules and collecting ducts Proximal convoluted tubule
-From blood to tubular Loop of Henle
-Usually in the distal tubule Distal convoluted tubule
-K+, H+, Uric acid, Penicillin are secreted Collecting duct
Papillary duct
Minor calyx
Hormones that regulate kidney function - Major calyx
ANSWER -directly : Renal pelvis
ADH Ureter
Aldosterone Urinary Bladder
ANH Urethra
indirectly :
Renin (created by kidney)
Angiotensin Needed to form a blood clot - ANSWER -
Ca+, K+, fibrinogen, platlets
Aldosterone function - ANSWER --
decreases sodium and water loss in urine by Hepatic drains blood from - ANSWER -
returning sodium and water to the blood small intestine, spleen, pancreas, stomach
supplies the liver with blood form the aorta
Aldosterone: Target Cells - ANSWER -
kidneys
Parts of the nephron in order - ANSWER -
Bowmans Capsule -> Proximal Tubule -> Loop of
ANH function - ANSWER -Tells kidneys Henle -> Distal Tubule -> Collecting duct
that blood volume is too high, so dumps out H20
and Na+
function of upper respiratory tract -
ANSWER -filters, warms, and humidifies air
Effects of ADH - ANSWER -increases
reabsorption of water from urine back into
plasma and therefore, decreases the volume of function of lower respiratory tract -
ANSWER -Transports air to lungs for gas
