Changes

The urethralis muscle runs the entire length of the urethra and forms the external urethral sphincter.  

The urethralis muscle runs the entire length of the urethra and forms the external urethral sphincter.  

Unlike the internal sphincter the external sphincter is composed of striated muscle fibres which are under the voluntary control of the somatic nervous system. It is often called the '''urethralis''' muscle and runs the entire length of the urethra.  

Unlike the [[Bladder - Anatomy & Physiology#Internal Urethral Sphincter|internal sphincter]] the external sphincter is composed of striated muscle fibres which are under the voluntary control of the somatic nervous system. It is often called the '''urethralis''' muscle and runs the entire length of the urethra.  

=====Somatic Motor Supply - External Urethral Sphincter=====

=====Somatic Motor Supply - External Urethral Sphincter=====