AEMCA Practice Exam 2025 - Free Practice Questions and Study Guide for Advanced Emergency Medical Care Assistant Certification.

Question: 1 / 975

What is the function of the detrusor muscle?

To filter blood

To transport urine

To contract and expel urine

The detrusor muscle is a smooth muscle that forms the wall of the bladder. Its primary function is to contract rhythmically to facilitate the expulsion of urine from the bladder during the process of urination. When the bladder fills with urine, stretch receptors send signals to the brain indicating that it is time to empty the bladder. The detrusor muscle then contracts, increasing the pressure within the bladder, which allows urine to flow through the urethra and out of the body. This contracting action is essential for the storage and voiding of urine, making the detrusor muscle vital for maintaining proper urinary function.

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To aid in nephron filtration

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