lect 9 pelvis (perineum) Flashcards
what muscles form the pelvic diaphragm
levator ani and coccygeus muscles
what is the anterior border of the perineum
pubic symphysis
what bounds the perineum laterally
ischial tuberosities
what bounds the perineum posteriolaterally
sacrotuberous ligaments
what bounds the perineum posteriorly
inferior most sacrum and coccyx
what is the final support of the pelvic viscera
perineal body
what is the surgical incision of the perineum and inferoposterior vaginal wall
episiotomy
what is the major structure incised during a median episiotomy
perineal body
what is the fatty layer of subcutaneous tissue of the perineum continuous with posteriorly
sischioanal fat pad in the anal region
what does the (deep) perineal fascia intimately invest
ischiocavernosus, bulbospongiosus, superficial transverse perineal muscles
what does the (deep) perineal fascia attach to laterally
ischiopubic rami
what is the (deep) perineal fascia fused with anteriorly
suspensory ligament of the penis
what part of the urethra is often ruptured with fracture of the pelvic girdle (especially those resulting from separation of the pubic symphysis and puboprostatic ligaments)
intermediate part
what is the common site of rupture of the spongy urethra and extravasation of urine
in the bulb of the penis
what does rupture of the corpus spongiosum and spongy urethra result in
urine passing from it into the superficial perineal space
