Multiple choice

Which of these muscles helps urinary bladder to expel urine forcefully?

  1. Detrusor muscle

  2. Latissimus dorsi

  3. Hamstring muscle

  4. None of the above
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A Correct answer
Explanation

The detrusor muscle is the smooth muscle layer of the urinary bladder wall. During micturition (urination), it contracts to increase intra-bladder pressure and expel urine forcefully through the urethra. Latissimus dorsi and hamstrings are skeletal muscles unrelated to bladder function.

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