The anatomy and function of the bladder neck.
D005260:Female; D006801:Humans; D008297:Male; D009119:Muscle Contraction / Q000502:physiology; D009130:Muscle, Smooth / Q000502:physiology; D014521:Urethra / Q000033:anatomy & histology / Q000502:physiology; D001743:Urinary Bladder / Q000033:anatomy & histology* / Q000502:physiology*; D014554:Urination / Q000502:physiology