Pelvis and Perineum Flashcards
what type of joint is the lumbosacral jt
symphysis (secondary cartilagenous)
the sacroilliac is what type of joint ?
compound joint (plane and syndesmosis
pubic symphysis is what type of joint
secondary cartilagenous
what two ligaments help the sacrom from tilting upward
sacrospinous and sacrotuberous ligament
what prevents the sacrum from sliding forward
articular prrocesses and the illiolumbar ligaments
which sex has a wider sciatic notch
females
which sex has a wider subpubic angle
females
which sex has a longer pubis bone /
females
other names for the pelvic diaphragm
urogenital diaphragm or deep perineal pouch
what helps seperates the pelvic cavity from the perineum
pelvic diaphragm
what three muscles make up the levator ani
pubococcygeus puborectalis and iliococcygeus
what muscles make up the pelvic diaphragm
levator ani and coccygeus
levator ani are innervated by
S4 (nerve to levator ani and inferior rectal n
coccygeus are innervated by
S3-S4
relaxation or contraction of the puborectalis allows you to defecate ?
relaxes
what is the pubovesical ligament
pubis to bladder or prostate
heart shaped pelvic inlet
males
round shaped pelvic inlet
females
innervation of the obturator internus
nerve to obturator internus L5-S1
innervation of the piriformis
branches from L5, S1 and S2
action of the obturator internus and piriformis
lateral rotation of the extended hip joint
insertion of obturator internus and piriformis
medial side of greater trochanter
List what passes below piriformis muscle
inflerior gluteal a,v,n internal pudendal vessels posterior femoral cutaneous nerve obturator internus quadratus femoris
function of the coccyx
pulls coccyx forward after defecation
what is the innervation of the deep perineal pouch /?
perineal branches S2-S4
male ureter passes
under ductus deferans
female ureter passes
under uterine artery
blood supply to ureter
gonadal, renal, common and internal iliac, vsical and uterine
innervation of ureters
renal, aortic, superior and inferior hypogastric plexus (T10-L1)
lymphatic drainage of ureters
aortic nodes, common, internal and external iliac lymph nodes
What stabilizes the bladder ?
puboprostatic/pubovesical holds the neck
posteriorly hed by rectovesical ligaments
median umbilical ligmanet attaches bladder to the umbillicus
detrusor muscle is innervated by parasympathetics or sympathetics
parasympathetics
arterial supply to bladder
superior vesical, inferior vesical, vaginal
bladder drains to
external and internal iliac nodes
bulborethal glands secrete into
spongy/penile urethra
blood supply to male urethra
inferior vesical, middle rectal, internal pudendal arteries
what is the tissue that surrounds the uretrha
corpus spongiosum
inferolateral portion of the prostate is realted to
levator ani
prostatic capsule
dense covering surrounded by fibrous capsule around prostate that is continuous with puboprostatic ligaments (prostatic plexus lies between capsule and the sheath)
blood supply to the prostate
inferior vesical, internal pudendal, middle rectal arteries
innervation of prostate
pelvic splanchnic nerves and inferior hypogastric plexus
venous drainage of prostate
vesicular plexus communicates with internal vertebral plexus
what structure does the ductus deferans cross posterior to the bladder
ureter
blood supply to seminal vesicals
inferior vesical and middle rectal arteries
structures important in uterine support
levator ani
deep perineal pouch
pelvic organs (bladder)
uterine ligaments
transverse cervical ligament
cervix and lateral fornices of vagina to lateral pelvic wall
uterosacral ligaments
sides of cervix to middle sacrum
round ligament
uterus to labia majora
ovarian ligament
uterus to ovary
blood supply to the uterus
majority from uterine artery
fundus of uterus
drains to lumbar, external illiac
body of uterus
drains to external illiac
cervix of uterus
internal illiac and sacral lymph nodes