Which of the following is not a function of the liver?
Maintaining blood glucose concentration
Secretion of bile
Formation of urea
Secretion of insulin
The Correct Answer is D
A. Maintaining blood glucose concentration: Incorrect (this is a liver function) -the liver stores glycogen and performs gluconeogenesis to regulate blood glucose.
B. Secretion of bile: Incorrect (this is a liver function) -the liver synthesizes and secretes bile.
C. Formation of urea: Incorrect (this is a liver function) -the liver converts ammonia to urea (urea cycle).
D. Secretion of insulin: insulin is produced and secreted by the pancreatic β-cells, not the liver, so this is not a liver function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Decreased CO₂ and hydrogen ion concentrations and increased oxygen concentration stimulate her chemoreceptors, triggering inspiration. - Chemoreceptors respond to increased CO₂/decreased O₂.
B. The inflation reflex would not allow her to keep her lungs full of air for a prolonged period. The reflex would trigger inspiration. -The Hering–Breuer reflex prevents overinflation, not relevant here.
C. Increased CO₂ and hydrogen ion concentrations and decreased oxygen concentration stimulate her chemoreceptors, triggering inspiration. -Rising CO₂ strongly stimulates medullary chemoreceptors → involuntary breathing resumes.
D. The diaphragm will begin to fatigue and will not be able to hold its contracted position for more than a short period of time. -Breathing resumes due to chemoreceptor drive before muscle fatigue sets in.
Correct Answer is C
Explanation
A. Intercalated discs: Structures that connect cardiac cells and permit coordination, but not the term for the group behavior.
B. Chordae tendineae: Tendinous cords of AV valves; unrelated to cell-unit behavior.
C. Functional syncytium: Describes cells acting together as one unit due to electrical coupling.
D. Systole: The contraction phase of the cardiac cycle, not a term for a cell collective.
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