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Renal for Final
Terms in this set (33)
The reabsorption of water by the ________ occurs mainly by _______ in response to ADH.
Collecting Ducts, Osmosis
Which of the following statements about body fluid compartments in a 70kg person is NOT true?
The normal extracellular water is 28 liters
If the osmolarity of the cerebral spinal fluid decreases from 310 to 300 mosmolar, there will be a/an ________ in the release of ____________ from the posterior pituitary.
Which of the following would NOT be a normal function of the renal system.
Regulation of blood protein levels
A decrease in the effective circulating blood volume (ECBV) would first be detected by _________.
All of the following are part of the filtration barrier EXCEPT
The plasma concentration of sodium is _____________.
C and D
(regulated by vasopressin, the primary determinate of plasma osmolarity)
Approximately ____ of the total body water is contained in the extracellular fluid compartment. The remaining _____ of the total body water is contained in the intracellular fluid compartment. The extracellular fluid compartment is subdivided into the plasma and interstitial comparments in a _____ to _____ ratio.
1/3, 2/3, 1/4, 3/4
Physiological adjustments affecting fluid and electrolyte balance are mediated by _________.
A, B and C
(ADH, aldosterone, ANP)
Which of the following about micturition is FALSE
Activity of motor neurons innervating the internal sphincter leads to urination.
Activaty of motor neurons innervating the external sphincters leads to urination
(my email says "DE" and those are D and E)
Which of the following substances would not be found in the fluid of Bowman's Space at its normal plasma concentration?
Immediately after severe but non-fatal hemorrhage, there will be _______.
an increase in renin release
Of the following compartments the _________ volume is the most important in determining an optimum effective circulating blood volume (ECBV).
One difference between the plasma and interstitial fluid is that the plasma has significantly more ______ than interstitial fluid.
The antidiuretic hormone is released from which of the following locations?
Tubulo-glomerular feedback is a control mechanism of autoregulation and found in each nephron. It accomplishes which of the following?
Balances tubular filtration with reabsorption
Which of the following statements regarding capillary exchange is FALSE?
The plasma proteins tend to drive fluid out of the capillaries.
Which of the following statements is TRUE about the proximal tubule?
NA+/H+ exchange is largely responsible for bicarbonate reabsorption.
In tubular fluid found in the proximal tubule, the Na+ concentration is _________ the Na+ concentration inside the cells of the proximal tubule epithelium.
approximately 10 times that of
Which of the following fluid compartments contains the largest volume of water?
Which of the following statements regarding osmosis is FALSE?
Osmotic water movement occurs from a region of high osmotic pressure to a region of low osmotic pressure.
If the clearance of substance "x" is greater than the clearance of inulin, then "x" is most likely:
filtered with net secretion
As tubular fluid exits the thick-limb of Henle's Loop, the osmolarity will be _________ to plamsa.
Glucose will appear in the urine
when the sodium-glucose symporter of the proximal tubule becomes saturated.
Insensible water loss is water loss via __________.
skin evaporation and pulmonary ventilation
Which of the following statements about the responses to expanded extracellular volume is NOT true?
Increased levels of atrial natriuretic peptide will stimulate reabsorption of sodium by the collecting duct
Measurements in a nephron reveal a golmerular hyraulic pressure of 69mm Hg,..................what is the net glomerular filtration pressure in this case?
The predominant intracellular cation is
An increase in plasma osmolality from 295 to 305 mOsmol/kg water, the circulating ________ will _________.
When water is lost from the ECF but electrolytes are retained, the osmolarity of the ECT rises and osmosis then moves water out of the ___________________ until osmotic equilibrium is obtained.
ICF and into the ECF
Consider the conswquence of the following change in arteriole resistance. If the resistance of the afferent arteriole becomes greater than the resistance of the efferent arteriole, then the ____________________________.
hydrostatic pressure within the golmerular cappilaries will decrease
Which of the following would be the MOST important normal function of the proximal tubule?
Reabsorption of ions, organic molecules, and water.
Which of the following is NOT one of the four processes that a nephron uses to carry out its function?
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