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90 Cards in this Set
- Front
- Back
The urinary system consists of ______, ureters, bladder and urethra
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kidneys
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The urinary system consists of kidneys, ______, bladder and urethra
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ureters
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The urinary system consists of kidneys, ureters, ______ and urethra
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bladder
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The urinary system consists of kidneys, ureters, bladder and ______.
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urethra
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The ______ system consists of kidneys, ureters, bladder and urethra
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urinary
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What is the most important function of the kidney?
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homeostatic regulation of the water and ion concentration of the blood
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Functions of the kidneys
Regulation of ______cellular fluid volume |
extra
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When extracellular fluid vol decreases blood pressure also ______.
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decreases
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If vol. and blood pressure fall too low what happens?
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cannot maintain adequate blood flow to brain and other organs
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Kidneys work with ______.
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cadiovascular system
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Functions of the kidneys
Regulation of os______. |
osmolarity
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kidneys integrated with behavior such as ______ to maintain blood osmolarity at a value close to 290 mOsM.
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thirst
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kidneys integrated with behavior such as thirst to maintain blood osmolarity at a value close to kidneys integrated with behavior such as thirst to maintain blood osmolarity at a value close to ______ mOsM.
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290 mOsM.
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Functions of the kidneys:
Maintainance of ______ balance |
ion
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The kidneys keep conc. of ______ within a normal range by balancing dietary intake with urinary loss.
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key ions
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________ is the major ion involved in regulation of extracellular fluid vol. and osmolarity.
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sodium ion
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______ and calcium concentrations are also closely regulated.
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Potassium
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Potassium and ______ concentrations are also closely regulated.
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calcium
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FUNCTIONS OF THE KIDNEY:
Homeostatic regulation of ______ |
pH
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If extracellular fluid too acidic, the kidneys remove ______ and conserve bicarbonate, which act as a buffer.
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H+
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If extracellular fluid too acidic, the kidneys remove H+ and conserve ______, which act as a buffer.
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bicarbonate
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If extracellular fluid too acidic, the kidneys remove H+ and conserve bicarbonate, which act as a ______.
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buffer
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If ______ ______ too acidic, the kidneys remove H+ and conserve bicarbonate, which act as a buffer.
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extracellular fluid
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When extracellular fluid becomes too alkaline, kidneys remove ______ ions and conserve H ions.
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bicarbonate ions
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When extracellular fluid becomes too alkaline, kidneys remove bicarbonate ions and conserve ______ ions.
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H ions
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When extracellular fluid becomes too ______, kidneys remove bicarbonate ions and conserve H ions.
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alkaline
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The kidneys (do/do not) pH disturbances as rapidly as lungs do.
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do not
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FUNCTIONS OF THE KIDNEYS:
excretion of ______ and foreign substances |
wastes
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2 types of wastes:
______ of metabolism and foreign substances, such as drugs and environmental toxins. |
by-products
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2 types of wastes:
by-products of metabolism and ______, such as drugs and environmental toxins. |
foreign substances
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Metabolic wastes include ______ from muscle metabolism.
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creatinine
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Metabolic wastes include creatinine from ______ metabolism.
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muscle
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Metabolic wastes include nitrogenous wastes ______ and uric acid.
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urea
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Metabolic wastes include nitrogenous wastes urea and ______ acid.
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uric acid.
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Yellow color of urine the result of:
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urobilinogen, a metabolite of Hb
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saccharin is removed by:
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kidneys
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anion benzoate removed by:
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kidneys
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FUNCTIONS OF THE KIDNEY
Production of H______ |
Hormones
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important role in 3 endocrine pathways: ______, renin, and renal enzymes.
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erythropoietin
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important role in 3 endocrine pathways: erythropoietin, ______, and renal enzymes.
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renin
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important role in 3 endocrine pathways: erythropoietin, renin, and _______ enzymes.
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renal enzymes
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erythropoietin function:
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cyto/hormone that regulates RBC synthesis
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renin function:
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regs. hormone production involved in sodium balance
and BP homeostasis. |
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renal enzymes function:
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converts vit D3 into a hormone that regs Ca2+ balance
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you must lose approximately ______ of kidney function befpre homeostasis is affected
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3/4
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What happens to the Resting membrane potential of a neuron if extracellular K+ levels decrease?
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hyperpolarizes membrane and makes the neuron less likely to fire an AP in response to a stimulus that would normally be above the threshold.
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The urinary system consists of ______, ureters, bladder and urethra.
|
kidneys
|
|
The urinary system consists of kidneys, ______, bladder and urethra.
|
ureters
|
|
The urinary system consists of kidneys, ureters, ______ and urethra.
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bladder
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The urinary system consists of kidneys, ureters, bladder and ______.
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urethra.
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The ______ system consists of kidneys, ureters, bladder and urethra.
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urinary
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In the first step in urine production, ______ and solutes move from plasma into nephrons.
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water
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In the first step in urine production, water and solutes move from ______ into nephrons.
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plasma
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Each nephron has both ______ elements and tubular elements.
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vascular
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Each nephron has both vascular elements and ______ elements.
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tubular
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Arterial blood arriving at a nephron passes from the ______ arteriole into the glomerulus.
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afferent arteriole
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Arterial blood arriving at a nephron passes from the afferent arteriole into the ______.
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glomerulus
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Where are glomeruli located?
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cortex of kidney
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blood leaving glomerulus flows into an ______,
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efferent arteriole
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after the efferent arteriole it then enters ______.
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peritubular capillaries
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Long capillaries that dip into the medulla are part of the ______.
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vasa recta
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Fluid moves outof the tubule and back into blood as it passes thru the peritubular capillaries and ______ recta.
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vasa recta
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Exits the kidney thru what?
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renal vein
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TUBULAR ELEMENTS OF THE KIDNEY:
Begins with |
Bowman's capsule
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combination of Bowman'capsule and glomerulus is called what?
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renal corpuscle
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From Bowman's capsule filtered fluid flows into the ______.
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proximal tubule
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After the proximal tubule it flows to ______,
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loop of Henle
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loop of Henle is divided in 2 limbs, ______ and descending limbs.
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ascending
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In descending limb, flow goes into medulla, T/F.
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T
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In ascending limb, flow goes back into cortex. T/F
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T
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Fluid leaving the loop of Henle goes into the ______.
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distal tubule
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What is the juxtaglomerular apparatus?
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where the tubule twists and folds back on itself.
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key feature of autoregulation?
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proximity of tubule and arterioles which allows paracrine communication between the structures.
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Distal tubules drain into a single ______.
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collecting duct
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The distal tubules and collecting duct together form what?
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distal nephron
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What happens to the Resting membrane potential of a neuron if extracellular K+ levels decrease?
|
hyperpolarizes membrane and makes the neuron less likely to fire an AP in response to a stimulus that would normally be above the threshold.
|
|
The urinary system consists of ______, ureters, bladder and urethra.
|
kidneys
|
|
The urinary system consists of kidneys, ______, bladder and urethra.
|
ureters
|
|
The urinary system consists of kidneys, ureters, ______ and urethra.
|
bladder
|
|
The urinary system consists of kidneys, ureters, bladder and ______.
|
urethra.
|
|
The ______ system consists of kidneys, ureters, bladder and urethra.
|
urinary
|
|
In the first step in urine production, ______ and solutes move from plasma into nephrons.
|
water
|
|
In the first step in urine production, water and solutes move from ______ into nephrons.
|
plasma
|
|
Each nephron has both ______ elements and tubular elements.
|
vascular
|
|
Each nephron has both vascular elements and ______ elements.
|
tubular
|
|
Arterial blood arriving at a nephron passes from the ______ arteriole into the glomerulus.
|
afferent arteriole
|
|
Arterial blood arriving at a nephron passes from the afferent arteriole into the ______.
|
glomerulus
|
|
Where are glomeruli located?
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cortex of kidney
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blood leaving glomerulus flows into an ______,
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efferent arteriole
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after the efferent arteriole it then enters ______.
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peritubular capillaries
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