Question

Which of the following is the correct order for micturition to occur

• A. Can be stimulated or inhibited by higher centers in the brain.
• B. Is stimulated by increased pressure in the bladder.
• C. Can be stimulated by irritation of the bladder or urethra.
• D. All of these

Answer 1

The correct option is A

Can be stimulated or inhibited by higher centers in the brain.

Micturition is the process of urination or flow of urine from the bladder through the urethra. When enough urine is accumulated in the bladder, it causes a stretch in the bladder walls. A threshold amount of this stretch causes a signal to be sent to the CNS. The CNS correlates the stretch information to the volume of urine present and initiates what is called the micturition reflex.

So the answer is (i) Bladder is filled progressively, (ii) Tension in the bladder wall increases, (iii) Initiation of nervous reflex, (iv) Micturition