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Question
Most visceral organs are innervated by only parasympathetic nerve fibers.a. True
b. False
Answer
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Related questions
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Describe how hydrogen ion secretion impacts acid-base balance.
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The plasma clearance rate of a substance filtered, but not reabsorbed or secreted, always equals the __________.
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The micturition reflex is initiated when stretch receptors within the urethra are stimulated.
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Although vasopressin promotes H2O conservation by the body, it cannot halt urine production.
a. True
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The plasma clearance rate for a secreted substance is always less than the glomerular filtration rate.
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b. False
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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.
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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
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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
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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.
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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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a. potassium
b. chloride
c. sodium
d. glucose
e. phosphorus
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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
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What are the two major control mechanisms that regulate the glomerular filtration rate (GFR)?
a. internal regulation and intrinsic parasympathetic control
b. autoregulation and intrinsic sympathetic control
c. internal regulation and extrinsic parasympathetic control
d. autoregulation and extrinsic sympathetic 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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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.
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Inspiratory volume is the minimum volume of air remaining in the lungs even after a maximal expiration.
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b. abdominal muscles
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d. bronchioles
e. diaphragm
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Generation of respiratory rhythm is now known to lie in the:
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b. pneumotaxic center
c. respiratory modulator
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