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Updated: Mar 29, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
Normal anatomic relationship between urethral sphincter complex and zones of prostrate in young Chinese males on MRI
Xiangdong Wang1, Tieyan Liu2, Jing Zhao1
1Department of Urinary Surgery, The Central Hospital of Cangzhou Hebei Province 061001, China.
Unlabelled:
Objective In this research, the normal anatomic relationship between urethral sphincter complex and zones of prostrate in young Chinese males has been studied.
Methods:
The sagittal, coronal, and axial T2-weighted non-fat suppressed fast spin-echo images of pelvic cavities of 86 Chinese young males were studied.
Result:
Urethral sphincter complex threaded through the prostate and divided it into 2 parts: transition zone (TZ), periurethral glands internal to the urethral sphincter and peripheral zone (PZ), central zone (CZ), anterior fibromuscular stroma (AFS) zone external to the urethral sphincter. The length of urethral striated sphincter is 12.26-20.94 mm (mean 16.59 mm) at membranous urethra.
Conclusions:
In this paper, we summarized the normal anatomic relationship between urethral sphincter complex and zones of prostrate in young Chinese males with no urinary control problems.
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