H&W Pelvic Function Level 1 Flashcards
Layer 1: Superficial PFM
- superficial transverse perineal
- ischiocavernosus
- bulbocavernosus/bulbospongiosus
- external anal sphincter
where is the superficial transverse perineal muscle located
from ischial tuberosities to perineal body
what layer 1 muscle is the main difference between males and females
bulbocavernosus/bulbospongiosus
Layer 2: Intermediate PFM
- deep transverse perineal
- perineal membrane
- external urethral sphincter
- compressor urethra
- sphincter urethrovaginalis
what layer 2 muscles are different in males vs females
females have:
1. sphincter urethrovaginalis
2. compressor urethra
males do not
what is embedded in layer 2 PFM
perineal membrane - thick fibrous sheet of dense fascia
- external genitalia and structures attach to this
Layer 3: Deep PFM
- Levator Ani:
* pubococcygeus
* iliococcygeus - (ischio)coccygeus
what muscles are associated with the pelvic floor hammock
levator ani
- pubococcygeus
- iliococcygeus
why is the coccygeus not considered part of the levator ani group
doesn’t elevate the anus
what layer is at the level of the pelvic diaphragm
layer 3 (deep PFM)
what are the borders of layer 3
Anterior
- pubic bone
Lateral
- ischiopubic ramus
- ilium
- arcus tendineus levator ani (ATLA)
Posterior
- sacrum
- coccyx
- piriformis
what muscles make up the pelvic wall
- piriformis
- obturator internus
perineal pain can be referred from
bulbocavernosus
ischiocavernosus
posterior pelvic floor pain can be referred from
sphincter ani
anococcygeal pain can be referred from
obturator internus
sacrococcygeal pain can be referred from
levator ani
coccygeus
anterior thigh pain can be referred from
iliopsoas
posterior thigh pain can be referred from
obturator internus
piriformis
vaginal pain can be referred from
levator ani
obturator internus
ischiocavernosus
bulbocavernosus
penile pain can be referred from
bulbocavernosus
ischiocavernosus
scrotal pain can be referred from
iliopsoas
pelvic clock: what is 12 o’clock?
pubic symphysis inferior angle
pelvic clock: what is 1 o’clock?
bulbocavernosus
pelvic clock: what is 2 o’clock?
ischiocavernosus