Pelvic Floor (All Lectures) Flashcards
Roles of the Pelvic Floor
4:
- Support
- Sphincteric
- Sexual
- Stabilization
For Muscle Layers of the Pelvic Floor….
Know the Following!!!!
- Layers 1-3
- Functions of ea. layer
- What mm’s are included
- Diff’s in muscles bw men and women
Muscle Layers of the Pelvic Floor
Vaginal: 3
- Layer 1→ Superficial Perineal
- Layer 2→ Urogenital Diaphragm
- Layer 3→ Pelvic Diaphragm
Muscle Layers of the Pelvic Floor
Male Muscle Differences: 3 Layers still
- Layer 1→ Superficial Perineal
- Layer 2→ Urogenital Triangle (same job, same orientation as Female)
- Layer 3→ Pelvic Diaphragm
Pelvic Floor Muscles: Name Them!
Layer 1: Superficial Perineal M vs F
- Ischiocavernosus
- Bulbocavernosus (erectile tissue)
- Superficial perineal (aka Transverse Perineal mm’s)
Pelvic Floor Muscles: Name Them!
Layer 2: Urogenital Diaphragm/Triangle
- Deep transverse perineal
- Sphincter urethrovaginalis
- Compressor urethra
- External Urethra
Pelvic Floor Muscles: Name Them!
Layer 3: Pelvic Diaphragm (DEEPEST LAYER)
- Levator Ani Group
- Iliococcygeus
- Pubococcygeus
- Puborectalis
- Coccygeus
Know these Pelvic Floor Muscles M vs F and be able to IDENTIFY THEM!
see pics
KNOW THIS CHART
(broken down in further slides)
see chart!
Muscles Layers of Pelvic Floor
Superf—–→ Deep
- Superficial Perineal
- Urogenital Diaphragm/Triangle
- Pelvic Diaphragm (deepest)
- Think Levator Ani group
Muscle Layer: Superficial Perineal
Function & MM’s
-
Function:
- Sexual function, Pelvic Floor support
-
MM’s
- Ischiocavernosus, Bulbocavernosus, Superficial Perineal
Muscle Layer: Urogenital Diaphragm/Triangle
Function & MM’s
-
Function:
- Closes urethral and vaginal openings
- Assists in maintaining erections
-
MM’s
- Deep Transverse Perineal, Sphincter Urethrovaginalis, Compressor Urethra, External Urethra
Muscle Layer: Pelvic Diaphragm (DEEPEST*)
Function & MM’s
-
Function:
- Supports organs, pelvis
- Stabilizes trunk w/ UE, LE motions
-
MM’s
- Levator Ani group (iliococcygeus, pubococcygeus, puborectalis) *KNOW THESE!!!
- Coccygeus
Male Pelvic Floor MM Differences
Layer 2 (Urogenital Diaphragm/Triangle) differs how???
Same Job, Same Orientation….BUT!
*Layer 2 differs in anatomical layout, the set-up is different
The DEEPEST pelvic floor layer, ______________, is comprised of 3 muscles within the ______________ group…..what are they and pics??? ?
- Deepest Layer→ Pelvic Diaphragm
-
3 mm’s within the Levator Ani group
- Iliococcygeus
- Pubococcygeus
- Puborectalis
***REMEMBER→ “Sling that holds UP the anus” Levator (lift) Ani (anus)
Pelvis→ complex structure containing…..
Pelvic viscera, Urinary/GI tract, Support and Suspensory ligs, Fascial connections, Skeletal and striated mm’s
Structures of Bony Pelvis
4 specific articulations
- R &L SI joints
- Sacrococcygeal symphysis
- Pubic symphysis
Greater & Lesser Pelvis
-
Greater pelvis
- Support portion
- Supports lower abdom viscera
-
Lesser pelvis
- Inferior portion
- Contains pelvic cavity and pelvic viscera
Pelvic INlet
Describe + Pics
- Boundary bw greater & lesser pelvis
- Pelvic brim is most superior border
- Determines size and shape of birth canal
Pelvic OUTlet
Function + Pics
- End of lesser pelvis
- Inferior portion
- Coccyx, sacrum move during childbirth to widen pelvic OUTlet
Male Perineum
Urogenital, Anal Triangles
see pics
Female Perineum is a passage to _______, ________, ________ systems
Reproductive tract; Urinary; GI Systems
A healthy bladder should…..
STRETCH!!!
What is Continence and What does it Require?
Voluntary control of bladder and bowel
-
Requires:
- intact NS, adequate PFM contraction strength, quality, timing
- bladder must expand to contract→ should stretch!**
- full sensory awareness of bladder filling
Know these anatomical structures for Bladder Anatomy
- Vesical
- Detrusor
- Trigone
- 2 Ureters
- Urethra
Bladder Anatomy:
Vesical
Actual bladder
Bladder Anatomy:
Detrusor
Bladder muscle
Bladder Anatomy:
Trigone + functions
Posterior to bladder wall
- Sensitive to stretch
- Can create urgency
Bladder Anatomy:
2 Ureters and what do they do?
Deposit into superior bladder wall
Bladder Anatomy:
Urethra is where?
@ the distal bladder
Urethral Sphincters
(2):
- Internal urethral sphincter
- External urethral sphincter
Internal Urethral Sphincter
- Base of bladder neck
- Autonomic, smooth (internal) muscle → INvoluntary
External Urethral Sphincter
- Inferior to bladder neck and internal urethral sphincter
- Somatic, skeletal (EXternal) muscle→ VOLUNTARY
INTERNAL urethral sphincter muscle
Smooth muscle→ INvoluntary
EXTERNAL urethral sphincter muscle
Skeletal mm→ VOLUNTARY
Pelvic floor muscle role in continence→ IMPORTANT!!!
In general, PF ________ w/ _______ of urine
PF contracts w/ storage of urine
Pelvic floor muscle role in continence→ IMPORTANT!!!
In general, PF _________ when _______ urine
PF relaxes when empties urine
PF contracts w/ storage of urine
This is during what stage of breathing?
INHALE → elevates
PF relaxes when empties urine
During what stage of breathing?
During EXHALE → descends
What happens when PF contracts w/ storage of urine?
Bladder gets heavier and PF holds it up!!!
If PFM is weak….
what happens as a result?
Pee more/clench
Bc PFM’s are weak and cannot hold up the bladder!!!
*as a result of this, pts may reduce fluid intake==> BAD!!!
Good intervention for weak PFM’s
Incremental lowering and lifting of PFMs
*Ecc. control
PFM Dysfunction picture
see pics
NS Role in PF
Parasympathetic is what plexus?
Pelvic plexus
- S2-S4
- M & S innervation to bladder
- Detrusor contraction + bladder emptying
- Cholinergic receptors in bladder
NOTE: these are medication targets!!!
NS Role in PF
Sympathetic
What plexus?
Hypogastric Plexus
- T10-L2
- Detrusor relaxation for filling and storage
- Beta adrenergic receptors in bladder
NOTE: these are targets for medications!
Normal Urinary Tract Function
Pushing/Straining is….
UNNECESSARY!!!
Normal Urinary Tract Function
Post Residual Void (PRV) ==>
50ml OR LESS
*what’s left after pee