scholarly journals Bulbospongiosus muscle

2017 ◽  
Author(s):  
Frank Gaillard ◽  
Jeffrey Cheng
Keyword(s):  
Bulbospongiosus Muscle

The Male Bulbospongiosus Muscle and its Relation to the External Anal Sphincter

2015 ◽  
Vol 193 (4) ◽  
pp. 1433-1440 ◽  
Author(s):  
Kevin Peikert ◽  
Ivan Platzek ◽  
Thomas Bessède ◽  
Christian Albrecht May
Keyword(s):  
Anal Sphincter ◽  
External Anal Sphincter ◽  
Bulbospongiosus Muscle

scholarly journals Structural analysys of the bulbospongiosus muscle in patients with bulbar urethral strictures

2020 ◽  
Vol 19 ◽  
pp. e722
Author(s):  
E.F. Alves ◽  
L.A. Favorito ◽  
W.S. Costa ◽  
C.B.M. Gallo ◽  
M.A. Passos ◽  
...  
Keyword(s):  
Urethral Strictures ◽  
Bulbospongiosus Muscle

scholarly journals Striated Perineal Muscles: Location of Autonomic, Sensory, and Somatic Neurons Projecting to the Male Pig Bulbospongiosus Muscle

2009 ◽  
Vol 292 (11) ◽  
pp. 1756-1763 ◽  
Author(s):  
Maddalena Botti ◽  
Luisa Ragionieri ◽  
Ferdinando Gazza ◽  
Franca Acone ◽  
Luisa Bo Minelli ◽  
...  
Keyword(s):  
Bulbospongiosus Muscle

Characterization of bulbospongiosus muscle reflexes activated by urethral distension in male rats

2012 ◽  
Vol 303 (7) ◽  
pp. R737-R747 ◽  
Author(s):  
Masayuki Tanahashi ◽  
Venkateswarlu Karicheti ◽  
Karl B. Thor ◽  
Lesley Marson
Keyword(s):  
Sensory Nerve ◽  
Male Rats ◽  
Intraluminal Pressure ◽  
Urethral Pressure ◽  
Nerve Branch ◽  
Primary Afferent ◽  
Afferent Fibers ◽  
Single Burst ◽  
Primary Afferent Fibers ◽  
Bulbospongiosus Muscle

The urethrogenital reflex (UGR) is used as a surrogate model of the autonomic and somatic nerve and muscle activity that accompanies ejaculation. The UGR is evoked by distension of the urethra and activation of penile afferents. The current study compares two methods of elevating urethral intraluminal pressure in spinalized, anesthetized male Sprague-Dawley rats ( n = 60). The first method, penile extension UGR, involves extracting the penis from the foreskin, so that urethral pressure rises due to a natural anatomical flexure in the penis. The second method, penile clamping UGR, involves penile extension UGR with the addition of clamping of the glans penis. Groups of animals were prepared that either received no additional treatment, surgical shams, or received bilateral nerve cuts (4 nerve cut groups): either the pudendal sensory nerve branch (SbPN), the pelvic nerves, the hypogastric nerves, or all three nerves. Penile clamping UGR was characterized by multiple bursts, monitored by electromyography (EMG) of the bulbospongiosus muscle (BSM) accompanied by elevations in urethral pressure. The penile clamping UGR activity declined across multiple trials and eventually resulted in only a single BSM burst, indicating desensitization. In contrast, the penile extension UGR, without penile clamping, evoked only a single BSM EMG burst that showed no desensitization. Thus, the UGR is composed of two BSM patterns: an initial single burst, termed urethrobulbospongiosus (UBS) reflex and a subsequent multiple bursting pattern (termed ejaculation-like response, ELR) that was only induced with penile clamping urethral occlusion. Transection of the SbPN eliminated the ELR in the penile clamping model, but the single UBS reflex remained in both the clamping and extension models. Pelvic nerve (PelN) transection increased the threshold for inducing BSM activation with both methods of occlusion but actually unmasked an ELR in the penile extension method. Hypogastric nerve (HgN) cuts did not significantly alter any parameter. Transection of all three nerves eliminated BSM activation completely. In conclusion, penile clamping occlusion recruits penile and urethral primary afferent fibers that are necessary for an ELR. Urethral distension without significant penile afferent activation recruits urethral primary afferent fibers carried in either the pelvic or pudendal nerve that are necessary for the single-burst UBS reflex.

MRI Features of Presumed Primary Extranodal Lymphoma of the Bulbospongiosus Muscle Causing Stranguria

2020 ◽  
Vol 56 (5) ◽  
pp. 291
Author(s):  
William Humphreys ◽  
Riccardo Finotello ◽  
Frederike Schiborra
Keyword(s):  
Skeletal Muscle ◽  
Imaging Features ◽  
Mri Findings ◽  
Intermediate Signal Intensity ◽  
Non Hodgkin Lymphoma ◽  
Mri Features ◽  
History Of ◽  
Pelvic Limb ◽  
The Right ◽  
Bulbospongiosus Muscle

ABSTRACT Hematopoietic neoplasia is common in dogs, with canine non-Hodgkin lymphomas representing more than 80% of all hematopoietic cancer. However, extranodal infiltration of the skeletal muscle by non-Hodgkin lymphoma is rare in humans and dogs. A 9 yr old neutered male English mastiff presented with a 3 wk history of recurrent stranguria, pelvic limb ataxia, and mild proprioceptive deficits bilaterally, worse in the right pelvic limb. MRI showed an expansile ill-defined lesion within the bulbospongiosus muscle. The lesion had intermediate signal intensity to muscle and fat on T2-weighted imaging and was isointense to unaffected muscle on precontrast T1-weighted imaging. Contrast enhancement was heterogeneous and there was digitate signal alteration within adjacent perilesional fat. Ultrasound examination confirmed a hypoechoic lesion infiltrating the muscle. Cytological examination yielded a diagnosis of high-grade lymphoma. This report provides the first description of MRI findings associated with cytologically confirmed lymphoma of the skeletal muscle in the dog. Although nonspecific, the imaging features strongly correlate with those in the medical literature and lymphoma should be considered a pertinent differential in cases presenting with similar imaging findings.

Prospective follow-up study of artificial urinary sphincter placement preserving the bulbospongiosus muscle

2016 ◽  
Vol 36 (5) ◽  
pp. 1387-1394 ◽  
Author(s):  
Argimiro Collado Serra ◽  
José Domínguez-Escrig ◽  
Álvaro Gómez-Ferrer ◽  
Emilio Batista Miranda ◽  
José Rubio-Briones ◽  
...  
Keyword(s):  
Artificial Urinary Sphincter ◽  
Follow Up Study ◽  
Urinary Sphincter ◽  
Bulbospongiosus Muscle

Functional Effects of Bulbospongiosus Muscle Sparing on Ejaculatory Function and Post-Void Dribbling after Bulbar Urethroplasty

2017 ◽  
Vol 197 (3 Part 1) ◽  
pp. 738-743 ◽  
Author(s):  
Ariel Fredrick ◽  
Bradley A. Erickson ◽  
Kristian Stensland ◽  
Alex J. Vanni
Keyword(s):  
Muscle Sparing ◽  
Bulbospongiosus Muscle

289 Artificial urinary sphincter placement preserving the bulbospongiosus muscle: Is it possible to decrease urethral erosion/atrophy rate?

2012 ◽  
Vol 11 (1) ◽  
pp. e289
Author(s):  
Serra A. Collado ◽  
A. Gomez-Ferrer ◽  
Backhaus M. Ramirez ◽  
Ramón-Borja J. Casanova ◽  
Escrig J. Dominguez ◽  
...  
Keyword(s):  
Artificial Urinary Sphincter ◽  
Urethral Erosion ◽  
Atrophy Rate ◽  
Urinary Sphincter ◽  
Bulbospongiosus Muscle
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