Question

The muscles of urinary bladder can be categorized as

• A. Striated muscle
• B. Smooth muscle
• C. Cardiac muscle
• D. None of the above

Answer 1

The correct option is B Smooth muscle

• The detrusor muscle is a layer of the urinary bladder wall made of smooth muscle fibres arranged in a spiral, longitudinal, and circular bundles.
• The detrusor muscle remains relaxed to allow the bladder to store urine, and contracts during urination to release urine. Hence, The muscles of the urinary bladder can be categorized as Smooth muscle.

So, the correct answer is 'Smooth muscle'.