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Question
The passive reabsorption of urea is indirectly linked to the active reabsorption of:a. potassium
b. chloride
c. sodium
d. glucose
e. phosphorus
Answer
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Related questions
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Vasopressin is produced by several specific neuronal cell bodies in the __________ and then stored in the posterior __________ gland.
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The micturition reflex is initiated when stretch receptors within the urethra are stimulated.
a. True
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a. True
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The plasma clearance rate for a secreted substance is always less than the glomerular filtration rate.
a. True
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Hydrogen ions are only secreted by the proximal tubules.
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Plasma protein concentration can become extremely high in diabetes mellitus, a digestive disorder involving inadequate insulin action.
a. True
b. False
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a. True
b. False
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The loop of Henle forms a sharp U-shaped or hairpin loop that surrounds the renal cortex.
a. True
b. False
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What does micturition mean?
a. The process of bladder emptying or urination
b. The process of filtration through the glomerulus
c. The acidification of urine
d. The final filtration of urine
e. A urinary bacterial infection
Q:
What happens when the hydrogen ion concentration in the body fluids is too low?
a. Oxygen absorption increases.
b. Hydrogen absorption increases.
c. Hydrogen absorption decreases.
d. Hydrogen secretion increases.
e. Hydrogen secretion decreases.
Q:
The most prevalent ions secreted by the tubules are:
a. sodium and chloride
b. sodium and hydrogen
c. sodium and potassium
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How are glucose and amino acids reabsorbed in the proximal tubule?
a. primary passive transport
b. secondary passive transport
c. primary active transport
d. secondary active transport
e. simple diffusion
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What are the two major control mechanisms that regulate the glomerular filtration rate (GFR)?
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b. autoregulation and intrinsic sympathetic control
c. internal regulation and extrinsic parasympathetic control
d. autoregulation and extrinsic sympathetic control
e. external regulation and extrinsic parasympathetic control
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Emphysema is characterized by __________ of the smaller airways and breakdown of __________ walls.
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The major inspiratory musclesthe muscles that contract to accomplish an inspiration during quiet breathinginclude the __________ and __________ intercostal muscles.
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__________ is an inflammation of the pleural sac and leads to by painful breathing because each inflation and each deflation of the lungs cause a "friction rub."
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Because the amount of atmospheric air that reaches the alveoli and is actually available for exchange with blood is more important than the total amount breathed in and out, alveolar ventilation is more important than pulmonary ventilation.
a. True
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a. True
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Beyond the larynx, the trachea divides into two main branches, the right and left bronchi.
a. True
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a. chest muscles
b. abdominal muscles
c. intercostal muscles
d. bronchioles
e. diaphragm
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Generation of respiratory rhythm is now known to lie in the:
a. medullary respiratory center
b. pneumotaxic center
c. respiratory modulator
d. pre-Btzinger complex
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The most important factor determining the percentage of hemoglobin saturation is the:
a. systemic blood pressure
b. diastolic blood pressure
c. pH of the blood
d. PCO2 of the blood
e. PO2 of the blood
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What is the partial pressure of O2 in atmospheric air?
a. 180 mm Hg
b. 175 mm Hg
c. 170 mm Hg
d. 165 mm Hg
e. 160 mm Hg