PHTY100 Lecture Notes - Lecture 12: Bulbospongiosus Muscle, Urogenital Triangle, Pudendal Nerve
female: bladder, urethra, uterus, vagina, rectum, anus
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male: bladder, urethra, prostate, rectum, anus
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12.1 State the organs of the female and male pelvis.
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Bladder
Urethra
Lower urinary tract organs
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Uterus
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Vagina
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Female
Prostate
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Male
Reproductive organs
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Rectum
Anal canal
Lower GIT organs
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Bladder, urethra
Anterior compartment
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Uterus, vagina/prostate
Middle compartment
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Rectum, anal canal
Posterior compartment
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12.2 Describe the compartments of the pelvic floor
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12.3 Describe the relative position of the pelvic organs to each other
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12. The pelvic floor
Thursday, 18 May 2017
3:07 PM
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The pelvic floor is made up of both muscle and fascia
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Helps support the pelvic (and abdominal) viscera
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Contributes to increases in intra-abdominal pressure and then helps to maintain intra-
abdominal pressure
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Acts as sphincters for the passageways through the pelvis -> urethra, vagina, anus
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Form a 'gutter' for the head of the foetus
Assist in childbirth
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12.4 State the functions of the pelvic floor.
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Pull off the ischial spines and sweep in to the bottom of the sacrum and coccyx
Coccygeus
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Most medial band
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Attaches to the interior surface of the pubic bone, then slings around the
anal canal and goes back to the other one
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Help keep the angle
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Relax when you defecate
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Puborectalis
levator ani
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Pubococcygeus
12.5 Identify, state the attachments of and deduce the actions of the muscles of the pelvic
floor:
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Document Summary
12. 1 state the organs of the female and male pelvis. female: bladder, urethra, uterus, vagina, rectum, anus male: bladder, urethra, prostate, rectum, anus. 12. 2 describe the compartments of the pelvic floor. 12. 3 describe the relative position of the pelvic organs to each other. 12. 4 state the functions of the pelvic floor. The pelvic floor is made up of both muscle and fascia. Contributes to increases in intra-abdominal pressure and then helps to maintain intra- abdominal pressure. Acts as sphincters for the passageways through the pelvis -> urethra, vagina, anus. Form a "gutter" for the head of the foetus. Attaches to the interior surface of the pubic bone, then slings around the anal canal and goes back to the other one. 12. 5 identify, state the attachments of and deduce the actions of the muscles of the pelvic floor: Pull off the ischial spines and sweep in to the bottom of the sacrum and coccyx levator ani.
