External Urethral Sphincter Motoneuron Properties 4 in Adult Female Rats Studied in Vitro
نویسندگان
چکیده
2 3 EXTERNAL URETHRAL SPHINCTER MOTONEURON PROPERTIES 4 IN ADULT FEMALE RATS STUDIED IN VITRO 5 6 7 8 9 10 Jonathan S. Carp, Ann M. Tennissen, Jennifer E. Liebschutz, Xiang Yang 11 Chen, and Jonathan R. Wolpaw 12 13 14 15 Wadsworth Center, New York State Department of Health, Albany, NY 12201 16 Department of Biomedical Sciences, School of Public Health, SUNY at Albany, Albany, NY 17 12201 18 Corresponding author 19 20 21
منابع مشابه
External urethral sphincter motoneuron properties in adult female rats studied in vitro.
The external urethral sphincter (EUS) muscle plays a crucial role in lower urinary tract function: its activation helps maintain continence, whereas its relaxation contributes to micturition. To determine how the intrinsic properties of its motoneurons contribute to its physiological function, we have obtained intracellular current-clamp recordings from 49 EUS motoneurons in acutely isolated sp...
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Intracellular recordings from external urethral sphincter (EUS) and external anal sphincter (EAS) motoneurons were obtained during micturition in the decerebrate cat. The neural circuitry mediating micturition was activated by distension of the bladder or by electrical stimulation of the pontine micturition center (PMC). During micturition, the membrane potential of EUS motoneurons hyperpolariz...
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28 29 In the rat, external urethral sphincter (EUS) activation during micturition consists of three 30 sequential phases: 1) an increase in tonic EUS activity during passive filling and active 31 contraction of the bladder (guarding reflex), 2) synchronized phasic activity (EUS bursting) 32 associated with voiding, and 3) sustained tonic EUS activity that persists after bladder 33 contraction. ...
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