Micturition is another term for
the production of nitrogenous wastes
glomerular filtration
the countercurrent multiplier process
inflammation of the urinary bladder
the elimination of urine
The Correct Answer is E
A. The production of nitrogenous wastes: Refers to metabolism, not elimination.
B. Glomerular filtration: An early step in urine formation, but not the act of urinating itself.
C. The countercurrent multiplier process: A mechanism in the nephron loop that concentrates urine, not related to urination.
D. Inflammation of the urinary bladder: Describes cystitis, not micturition.
E. The elimination of urine: Micturition is the process of expelling urine from the bladder through the urethra.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Creatinine: Normal waste product from muscle metabolism; excreted in urine.
B. Urobilin: Normal pigment derived from breakdown of hemoglobin; gives urine its yellow color.
C. Glucose: Glucose should be reabsorbed completely in the proximal tubule. Its presence in urine (glucosuria) suggests hyperglycemia or diabetes mellitus.
D. Ammonia: Produced from amino acid deamination; found in normal urine.
E. Magnesium: Small amounts are normally excreted in the urine as part of electrolyte balance.
Correct Answer is A
Explanation
A. It is an autonomic reflex mediated predominantly by parasympathetic nerve fibers: Erection is primarily driven by parasympathetic stimulation (S2–S4), which causes vasodilation of penile arteries and engorgement of erectile tissue.
B. It is an autonomic reflex mediated predominantly by sympathetic nerve fibers: Sympathetic fibers are involved in ejaculation and detumescence, not erection initiation.
C. It is a somatic reflex mediated predominantly by parasympathetic nerve fibers: Erection is not mediated by somatic (voluntary) control.
D. It is a somatic reflex mediated predominantly by sympathetic nerve fibers: Both components are incorrect—erection is not somatic and not sympathetic.
E. It is an exclusively voluntary action mediated by the cerebral cortex: Erection can be influenced by psychological stimuli, but the physiological mechanism is autonomic, not voluntary.
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