title: Observations on the dynamics of the bladder neck.
mesh_terms: D000328:Adult; D000818:Animals; D004285:Dogs; D005260:Female; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology; D010277:Parasympathomimetics / Q000494:pharmacology; D011312:Pressure; D013566:Sympathomimetics / Q000494:pharmacology; D014521:Urethra / Q000502:physiology; D001743:Urinary Bladder / Q000187:drug effects / Q000502:physiology*; D014554:Urination / Q000502:physiology; D014563:Urodynamics / Q000502:physiology*
chemical_list: D010277:Parasympathomimetics; D013566:Sympathomimetics