The lining of the urethra is variable. Most of the distal two-thirds of the urethra is lined by squamous epithelium, but is regularly interrupted by foci of pseudostratified columnar epithelium. The upper one-third shows transitional epithelium similar to that seen elsewhere in the urinary tract. The epithelium overlies a loose lamina propria, which contains mucinous glands and many thin-walled veins. Beneath this layer, there are inner longitudinal and outer circular layers of smooth muscle. Distally, a sphincter of skeletal muscle surrounds the layers of smooth muscle.

51 Tips for Dealing with Endometriosis

51 Tips for Dealing with Endometriosis

Do you have Endometriosis? Do you think you do, but aren’t sure? Are you having a hard time learning to cope? 51 Tips for Dealing with Endometriosis can help.

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