micturition reflex

micturition reflex
any of the reflexes necessary for effortless evacuation of urine and subconscious maintenance of continence: vesical contraction following distention of the bladder, vesical contraction evoked by urethral flow, vesical contraction evoked by proximal urethral distention, relaxation of the urethra resulting from running liquid in the urethra, distention of the bladder resulting in relaxation of the external sphincter, relaxation of the proximal urethral smooth muscle by distention of the bladder, and vesical contraction related to running liquid through the urethra.

Medical dictionary. 2011.

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  • micturition reflex — noun relaxation of the urethral sphincter in response to increased pressure in the bladder • Hypernyms: ↑reflex, ↑reflex response, ↑reflex action, ↑instinctive reflex, ↑innate reflex, ↑inborn reflex, ↑unconditioned reflex, ↑ …   Useful english dictionary

  • reflex action — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex response, ↑instinctive reflex, ↑innate reflex, ↑inborn reflex, ↑unconditioned reflex, ↑physiological reaction …   Useful english dictionary

  • reflex response — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex action, ↑instinctive reflex, ↑innate reflex, ↑inborn reflex, ↑unconditioned reflex, ↑physiological reaction …   Useful english dictionary

  • Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… …   Medical dictionary

  • Micturition syncope — The temporary loss of consciousness upon urinating. (Syncope is the temporary loss of consciousness or, in plain English, fainting). The situations that trigger this reaction are diverse and include having blood drawn, straining while urinating… …   Medical dictionary

  • unconditioned reflex — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex response, ↑reflex action, ↑instinctive reflex, ↑innate reflex, ↑inborn reflex, ↑physiological reaction …   Useful english dictionary

  • inborn reflex — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex response, ↑reflex action, ↑instinctive reflex, ↑innate reflex, ↑unconditioned reflex, ↑physiological reaction …   Useful english dictionary

  • innate reflex — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex response, ↑reflex action, ↑instinctive reflex, ↑inborn reflex, ↑unconditioned reflex, ↑physiological reaction …   Useful english dictionary

  • instinctive reflex — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex response, ↑reflex action, ↑innate reflex, ↑inborn reflex, ↑unconditioned reflex, ↑physiological reaction …   Useful english dictionary

  • bladder reflex — the reflex contracting and emptying of the urinary bladder in response to filling, the first step in the micturition reflex; it can be voluntarily inhibited by impulses from the brain in patients with normal neurological function …   Medical dictionary

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