Question

The outline of principle event of urination is given below in unorder manner-

I. Stretch receptors on the wall of urinary bladder send signal to the CNS

II. The bladder fills with urine and becomes distended

III. Micturition

IV. CNS passes on motor messenges to initiate the contraction smooth muscles of bladder and simultaneous relaxation f urethral Sphincter

The correct order of steps for urination is -

• A. I → II → III → IV
• B. IV → III → II → I
• C. II → I → IV → III
• D. III → II → I → IV

Answer 1

Answer: (A)

I → II → III → IV