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Exam 6: Urinary System and Balance
Terms in this set (30)
Which of the following is not a function of the kidneys?
Synthesis of plasma proteins
Consuming alcohol increases the need to urinate. This is due to the inhibitory effect of alcohol on
antidiuretic hormone (ADH).
A genetic defect causes the proximal convoluted tubules of nephrons to malfunction. Which of the following may NOT occur during urine formation?
reabsorption of water and glucose
You are at your cousin's high school graduation party. The only thing good to drink is lemonade. You end up staying at the party for a long time and drinking four large glasses of lemonade. What would you expect to happen to your urine production?
You will produce an increased amount of dilute urine.
Which of the following indicates the parts of a renal tubule in the correct sequence from beginning to end?
Proximal convoluted tubule, descending limb, ascending limb, distal convoluted tubule
The ways to increase glomerular filtration rate include
Increasing blood flow to kidneys and blood pressure
Which choice describes the countercurrent mechanism of the nephron loop?
Water moves out of the descending limb; sodium moves out of the ascending limb
What is the effect of ADH on the concentration of the blood plasma and the urine?
It decreases the concentration of blood plasma, and increases the concentration of urine
What is micturition?
Normal process by which urine is emptied from the bladder and voided from the body
Aldosterone would primarily cause the reabsorption of?
The process by which certain substances are transferred from the renal tubules to the peritubular capillaries is called
As a result of a diseased liver, a man's production of plasma proteins decreased significantly. What effect would this condition have on his GFR? Why?
It would increase the GFR, due to a decrease in osmotic pressure
The renal system does not play a direct role in regulating which of the following?
Urine is formed in a three-step process: which of the following gives the correct order in which these steps take place in the nephron?
Glomerular filtration, tubular reabsorption, tubular secretion
Which of the following is least likely to be present in the glomerular filtrate (the filtrate produced by the nephron before it enters the loop of Henle) of a healthy adult nephron?
Large molecular weight proteins
Water balance and electrolyte balance are interdependent because
electrolytes are dissolved in water.
Which type of epithelial tissue lines the ureter, urinary bladder and urethra?
Trace the flow of urine from its site of formation to its exit from the body:
Kidney ureter bladder urethra
The movement of water and electrolytes between fluid compartments is regulated primarily by
hydrostatic pressure and osmotic pressure.
Fluid found in vitreous and aqueous humors is referred to as
Water of metabolism is
a by-product of the oxidative metabolism of nutrients.
Which of the following metabolic processes releases hydrogen ions to body fluids?
All of the above
Which of the following is a physiological buffer?
The respiratory center is most likely to increase the breathing rate if the
pH of body fluids is decreasing.
Hyperventilation leads to
Acid-base buffer systems minimize pH changes by
converting strong acids to weak acids.
The main positively charged ion in the extracellular fluid is ______; the main negative ions in the ECF are ______.
Na+; Cl- and HCO3-
The majority of electrolytes in the body are obtained from __________; the majority of electrolytes are excreted in the __________.
Drink too much water without urinating could cause?
Find the false statement below, if any, concerning substances called "acids":
Acids dissociate in H2O, and release OH- ions
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