General Anatomy · Urinary System · Hard

Detrusor

Meaning: The smooth muscle of the bladder wall that contracts to expel urine.

In practice: Parasympathetic fibres from S2-S4 stimulate it to contract during voiding.

Quick check

Two questions on related general anatomy words.

Which word means: A tough band of tissue connecting bone to bone at a joint.

Which word means: The breastbone — a flat bone in the centre of the chest.

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