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Role of ischiocavernosus and bulbocavernosus in male pelvic health

Male Pelvic FloorMany therapists transition to treating men with the knowledge and training from female patients. When therapists apply this knowledge, for the most part, it works. When we spend some attention on learning what is a bit different, we might be drawn to the superficial muscles of the perineum. This old anatomy image does a wonderful job of "calling it like it is" or using anatomical terms that describe an action versus naming only the structure. In the image we are looking from below (inferior view) at the perineum and genitals. Just anterior to the anus we can see the anterior muscles within the urogenital triangle, with the base of the shaft of the penis located just anterior to (above in this image) the anus and perineal body. Notice that at the midline, we see muscle names the "accelerator urine". Modern textbooks refer to this muscle as the bulbocavernosus, or bulbospongiosus. Taking the name of accelerator urine, we can understand that this muscle will have an effect on aiding the body in emptying urine. It does this through rhythmic contractions, most often noted towards the end of urination, when the typical spurts of urine follow a more steady stream. This assistance with emptying can take place because the urethra is located within the lower part of the penis, the portion known as the corpus spongiosum. Because the bulbocavernosus muscle covers this part of the penis, and the inferior and lateral parts of the urethra are virtually wrapped within the bulbocavernosus, the muscle can have an effect on emptying the urine in the urethra.

Notice that if you follow the fibers of the accelerator urine muscle towards the top of the image, where the penis continues, you will notice fibers of the muscle wrapping around the sides of the penis. These fibers will continue as a fascial band that travels over the dorsal vessels of the penis. This allows the muscle to also have a significant action during sexual activity, in which blood flow (getting blood into, keeping blood in, and letting blood out of the penis) is paramount.

On either side of the penis we can see what is labeled the erector penis. As these muscles cover the legs, or crura which form the two upper parts of the penis, when the muscles contract, blood is shunted towards the main body of the penis. This of course helps with penile rigidity, as the smooth muscles in the artery walls of the penis allow blood to fill the spongy chambers.

Once we discuss the usual functions of these muscles, we can then imagine the dysfunctions potentially created by less than optimal activity. Consider the difficulty that these muscles will create in contracting or relaxing if they are either too weak, or too tense. These issues can create difficulty emptying well the urethra, often leading to post-void dribble. Blood flow and therefore penile rigidity with erections may be negatively impacted by inability of these muscles to contract or stay contracted, and blood flow leaving the penis may be impaired if the muscles cannot relax. When we work with patients who have genital pain, pelvic floor muscle weakness, dyscoordination, or tension, we can often improve sexual function, bladder emptying, and tasks that might otherwise be affected by pain.

If you are interested in learning more about how to assess and treat these muscles, you have one more opportunity this year to attend the 3-day Male Course instructed by Holly Tanner. Holly has been teaching this course for over 10 years when she co-wrote the first course with colleague and faculty member Stacey Futterman. The course has been updated and turned into a 3-day course to include more manual therapy techniques. Hurry to grab one of the remaining spots in the October 27-29 course in Grand Rapids!

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Upcoming Continuing Education Courses

Pelvic Floor Level 1 - Newark, NJ (Rescheduled)

Jul 12, 2020 - Jul 14, 2020
Location: Rutgers University - Doctoral Programs in Physical Therapy

Pregnancy Rehabilitation - Remote Course

Jul 16, 2020 - Jul 17, 2020
Location: Replacement Remote Course

Postpartum Rehabilitation - Foothill Ranch, CA (RESCHEDULED)

Jul 18, 2020 - Jul 19, 2020
Location: Intercore Physical Therapy

Pelvic Floor Level 1 - Colorado Springs, CO (SOLD OUT)

Jul 18, 2020 - Jul 19, 2020
Location: Manual Edge Physiotherapy

Postpartum Rehabilitation - Remote Course (SOLD OUT)

Jul 18, 2020 - Jul 19, 2020
Location: Replacement Remote Course

Pelvic Floor Level 1- Bangor, ME (Rescheduled)

Jul 18, 2020 - Jul 19, 2020
Location: Husson University

Pelvic Floor Level 1 - Columbus, OH

Jul 18, 2020 - Jul 19, 2020
Location: Fitness Matters

Pelvic Floor Level 1 Part 1 - Remote Course (SOLD OUT)

Jul 21, 2020 - Jul 22, 2020
Location: Short Form Remote Course

Nutrition Perspectives for the Pelvic Rehab Therapist - Columbia, MO (Rescheduled)

Jul 24, 2020 - Jul 26, 2020
Location: University of Missouri-Smiley Lane Therapy Services

Pelvic Floor Level 1 - Chicago, IL (RESCHEDULED)

Jul 25, 2020 - Jul 26, 2020
Location: Advocate Illinois Masonic Medical Center

Pelvic Floor Level 1 - Fayetteville, NC (SOLD OUT)

Jul 25, 2020 - Jul 26, 2020
Location: Methodist University School of Health Sciences

Nutrition Perspectives for the Pelvic Rehab Therapist - Remote Course

Jul 25, 2020 - Jul 26, 2020
Location: Replacement Remote Course

Pelvic Floor Level 2A - Glenwood Springs, CO (SOLD OUT)

Jul 25, 2020 - Jul 26, 2020
Location: Valley View Hospital

Pudendal Neuralgia and Nerve Entrapment - Maywood, IL (RESCHEDULED)

Jul 25, 2020 - Jul 26, 2020
Location: Loyola University Health System

Pelvic Floor Level 2B - Los Angeles, CA (RESCHEDULED)

Jul 25, 2020 - Jul 26, 2020
Location: Mount Saint Mary’s University

Manual Therapy for the Abdominal Wall - Remote Course

Jul 31, 2020
Location: Short Form Remote Course

Parkinson Disease and Pelvic Rehabilitation - Remote Course

Jul 31, 2020 - Aug 1, 2020
Location: Short Form Remote Course

Neurologic Conditions and Pelvic Floor Rehab - Washington, DC

Jul 31, 2020 - Aug 2, 2020
Location: George Washington University Hospital Outpatient Rehabilitation Center

Restorative Yoga for Physical Therapists - Remote Course

Aug 1, 2020 - Aug 2, 2020
Location: Replacement Remote Course

Pelvic Floor Level 2A - Chicago, IL (SOLD OUT)

Aug 1, 2020 - Aug 2, 2020
Location: Midwestern Regional Medical Center

Pelvic Floor Level 2A - Washington, DC (SOLD OUT)

Aug 1, 2020 - Aug 2, 2020
Location: The George Washington University

Pelvic Floor Level 1 - New York City, NY (RESCHEDULED)

Aug 2, 2020 - Aug 3, 2020
Location: Touro College

Pelvic Floor Level 1 - Birmingham, AL (SOLD OUT)

Aug 8, 2020 - Aug 9, 2020
Location: Shelby Baptist Medical Center

Trauma Awareness for the Pelvic Therapist - Remote Course

Aug 8, 2020 - Aug 9, 2020
Location: Replacement Remote Course

Pelvic Floor Level 1 - Boston, MA (RESCHEDULED)

Aug 8, 2020 - Aug 9, 2020
Location: Marathon Physical Therapy

Pediatric Functional Gastrointestinal Disorders - Pullman, WA (RESCHEDULED)

Aug 14, 2020 - Aug 16, 2020
Location: Pullman Regional Hospital

Pregnancy Rehabilitation - Remote Course

Aug 15, 2020 - Aug 16, 2020
Location: Replacement Remote Course

Pediatric Functional Gastrointestinal Disorders - Remote Course

Aug 15, 2020 - Aug 16, 2020
Location: Replacement Remote Course

Pelvic Floor Level 1 - Jonesboro, AR (Rescheduled)

Aug 15, 2020 - Aug 16, 2020
Location: Arkansas State University