What initiates the micturition reflex?

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What triggers the micturition reflex? The correct answer is (a) the stretch receptors located in the wall of the urinary bladder, which send signals to the sacral region of the spinal cord.

Anonymous · Accepted Answer

The correct answer is a. Stretch receptors in the wall of the urinary bladder signal the sacral region of the spinal cord.Explanation:The answers that take place automatically and quickly are called reflexes. When the smooth muscle in the bladder wall is stretched, the micturition reflex is triggered. Micturition (Urination) is the act of emptying the bladder (urinating). When the bladder is full of urine, the bladder wall stretch receptors trigger the micturition reflex. The detrusor muscle surrounding the bladder contracts. The internal urethral sphincter relaxes and allows urine to leave the bladder and pass into the urethra. Those two reactions are involuntary. The external urethral sphincter is voluntary. You must relax so that the urine passes through the urethra and leaves the body.

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This post might have the info you need:

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what statement best describes the difference between the sympathetic and parasympathetic nervous systems? the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

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What initiates the micturition reflex?

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