Science · Human Physiology
Which of the following statements regarding urine composition and micturition in a normal human is correct? A. Normal urine is slightly acidic (average pH ~6), though diet can shift it between 4.5 and 8. B. Daily urea excretion via urine is about 25 to 30 g. C. Presence of ketone bodies in urine indicates abnormal metabolism, commonly seen in uncontrolled diabetes mellitus. D. Micturition involves contraction of bladder smooth muscle (detrusor) and relaxation of urethral sphincter.
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All A, B, C, and D are correct
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