China
Africa
Explore chapters and articles related to this topic
Embryology, Anatomy, and Physiology of the Male Reproductive System
Published in Karl H. Pang, Nadir I. Osman, James W.F. Catto, Christopher R. Chapple, Basic Urological Sciences, 2021
Tunica albuginea:Thick fibrous sheath − type I and type III collagen interlaced with elastin fibres.Has an outer longitudinal layer and an inner circular layer.Contains emissary veins that are compressed during an erection.Surrounds the corpora cavernosa and fuses medially to form the median septum − has fenestrations to allow communication between the two corpora.Fuses ventrally, so longitudinal fibres are absent in the ventral groove.The tunica albuginea of the corpus spongiosum is a single layer of circular fibres.Thinner than those around the corpora cavernosa.The corpus spongiosum fills to a lower pressure during tumescence and allows the urethra to remain patent.
Anatomy & Embryology
Published in Manit Arya, Taimur T. Shah, Jas S. Kalsi, Herman S. Fernando, Iqbal S. Shergill, Asif Muneer, Hashim U. Ahmed, MCQs for the FRCS(Urol) and Postgraduate Urology Examinations, 2020
Anatomy of the penis. Which one of the following is TRUE?The corpus spongiosum is attached to the inferior ischiopubic rami at the root of the penis.The cavernosal artery supplies the urethra, glans and spongiosum.Buck’s fascia is continuous with Colles’ fascia in the perineum.The cavernosal nerve provides sensory supply to the penile skin.The arcuate subpubic ligament helps to maintain the erect penis in an upright position.
The Reproductive System and Its Disorders
Published in Walter F. Stanaszek, Mary J. Stanaszek, Robert J. Holt, Steven Strauss, Understanding Medical Terms, 2020
Walter F. Stanaszek, Mary J. Stanaszek, Robert J. Holt, Steven Strauss
Externally, the penis consists of the body or shaft, which terminates in the glans penis, a cap-like extension of the corpus spongiosum. The word glans is from the Latin for "acorn," so the term is often used for any rounded mass or gland-like structure (for example, glans clitoridis is the erectile tissue at the end of the clitoris). The glans penis is molded into an expanded rim called the corona (from the Greek for "crown," as in coronary). The prepuce or foreskin, a fold of skin between the corona and shaft of the penis, folds forward over the glans unless removed by the surgical procedure known as circumcision.
Effect of udenafil administration on postmicturition dribbling in men: a prospective, multicenter, double-blind, placebo-controlled, randomized clinical study
Published in The Aging Male, 2020
Kyungtae Ko, Won Ki Lee, Sung Tae Cho, Young Gu Lee, Tae Young Shin, Min Soo Choo, Jun Hyun Han, Seong Ho Lee, Cheol Young Oh, Jin Seon Cho, Hyun Cheol Jeong, Dae Yul Yang
A low daily dose of PDE5i is already widely used, and not only improves erectile function in many patients but also brings significant improvement in LUTS in some patients with benign prostatic hyperplasia [24,25]. Nevertheless, compared with the well-known mechanism of PDE5i drugs in erectile dysfunction, the mechanism in LUTS requires additional studies. Several mechanisms have been identified, but one of the major mechanisms lies in the effectiveness of PDE5i in controlling smooth muscle tone in the bladder neck, prostate, and urethra, consequently increasing the arterial blood supply to pelvic organs and affecting the afferent nerves that control the bladder, eventually strengthening the micturition reflex [26,27]. We believe that both mechanisms for improvement of erectile function and LUTS could serve as evidence for the claim that PDE5i drugs can relieve PMD symptoms. Furthermore, as demonstrated in this study, restoring the function of the corpus spongiosum that wraps around the urethra will improve both micturition and postmicturition symptoms.
Stepwise approach in the management of penile strangulation and penile preservation: 15-year experience in a tertiary care hospital
Published in Arab Journal of Urology, 2019
Sandeep Puvvada, Priyatham Kasaraneni, Ramesh Desi Gowda, Prasad Mylarappa, Manasa T, Kanishk Dokania, Abhishek Kulkarni, Vivek Jayakumar
A prospective observational study was performed from March 2003 to December 2018 on patients presenting to our hospital with penile strangulation. Patient’s clinical history, physical examination findings, and duration of strangulation were documented; there is no necessity for any diagnostic test as it is clinically evident the type of foreign body used. Grading of the injury was done as per the Bhat et al. [5] grading system: Grade 1, oedema of distal penis. No evidence of skin ulceration or urethral injury.Grade 2, injury to skin and constriction of corpus spongiosum, but no evidence of urethral injury. Distal penile oedema with decreased penile sensation.Grade 3, injury to skin and urethra but no urethral fistula. Loss of distal penile sensations.Grade 4, complete division of corpus spongiosum leading to urethral fistula and constriction of corpora cavernosa, with loss of distal penile sensations.Grade 5, gangrene, necrosis, or complete amputation of the distal penis.
Penile Sparing Techniques For Penile Cancer
Published in Postgraduate Medicine, 2020
The penis is composed of three cylindrical structures. The two corpus cavernosa lie dorsal to the corpus spongiosum, which surrounds the urethra. The tunica albuginea and deep (Buck’s) fascia surround the corpora and the deep dorsal vein, dorsal artery, and dorsal nerve. These layers serve as a barrier to an invasive malignancy by preventing its spread into the vascular corpora. The superficial (Dartos) fascia lies more superficial followed by dermal and epidermal layers. The subepithelial layers of the glans and inner layer of the foreskin are different from the shaft in that dartos is absent and replaced with lamina propria. The foreskin is a retractable fold of skin and mucosal tissue that covers the glans.