Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Perineum
|
pelvic floor
|
|
|
Two divisions of Perineum
|
Anterior triangle = urogenial
Posterior triangle = anal |
|
|
Superficial Urogenital muscles
|
Bulbospongiosus
Ischiocavernosus |
|
|
Bulbospongiosis
|
superficial urogenital muscle
-origin: from collagen sheath at base of penis or clitoris. -insertion: central tendon of perineum. -nerve: Pudendal, s2-s4 |
|
|
Ischiocavernosus
|
superficial muscle of urogenital triangle.
-origin: ischial tuberosity -insertion: symphysis pubis, to base of penis or clitoris. -Stiffens erectile tissue (penis/clit) |
|
|
Deep muscles of Urogenital Triangle
|
Urogenital Diaphragm
-Deep transverse perineus -Urethral Sphincter |
|
|
Deep transverse perineus
|
origin - ischial ramus
insertion - median raphe of urogenital diaphragm This is the base of the triangle. |
|
|
Urethral Sphincter
|
deep muscle of urogenital diaphragm
-ring surrounds the urethral opening |
|
|
Innervation of all the pelvic floor muscles except coccygeus
|
PUDENDAL S2-S4
|
|
|
superficial transverse perineal
|
superficial urogenital muscle;
makes the bottom line of the anterior triangle |
|
|
Muscles of the posterior triangle
|
-Coccygeus
-External Anal Sphincter -Levator Ani |
|
|
Coccygeus
|
muscle of anal triangle; at the back.
-from ischial spine to lateral saccrum INNERVATED BY S4-S5 |
|
|
External Anal Sphincter
|
Muscle of posterior anal triangle.
-ring around the anus |
|
|
Levator Ani
|
-Iliococcygeus
-pubococcyeus |
|
|
Iliococcygeus
|
-from ishial spine to coccyx and median raphe
elevates/contracts anus |
|
|
pubococcygeus
|
from pubis to coccyx and median raphe
-elevates/contracts anus with iliococcygeus. Pudendal nerve |
