Final - part 4 pelvis

what covers the lateral wall of the pelvis

obturator internus

obturator fascia

what part of the pelvic floor forms the rectovesical, rectouterine, and vesicouterine pouches

peritoneum

which pouches can have blood or ascites accumulate

rectovesical and rectouterine

what is the most posterior part of the levator ani

iliococcygeus

what is the pain part of the levator ani

pubococcygeus

what part of the pubococcygeus function in micturition

puboprostaticus and pubovaginalis

what are the functions of the puborectalis

maintain angle of anorectal junction

relax for defecation

direct fetal head

each common iliac artery bifurcates into what

external and internal iliac arteries

what does the external iliac artery continue as below the inguinal ligament

femoral artery

which vessel is the major source of blood to structures within the pelvis

internal iliac a

the superior gluteal artery is a branch of the internal iliac artery. What does it pass between?

lumbosacral trunk and 1st sacral nerve

what does the inferior gluteal artery branch from? what does it pass between?

internal iliac artery

1st and 2nd or 2nd and 3rd sacral nerves

the umbilical artery has a patent portion which gives rise to superior vesical arteries. One of these arteries usually gives rise to what artery

artery of the ductus deferens

the distal portion of the umbilical artery is obliterated and continues as what structure

medial umbilical ligament

which artery is homologous of the artery of the ductus deferens

uterine artery

the vaginal artery arises from two possible locations. what are they?

uterine a or internal iliac a

most pelvic structures drain into the caval system, which drain into the portal system?

rectum and anal canal

what forms the sacral plexus

lumbosacral trunk and anterior primary rami S1-S4

what muscle does the sacral plexus lie on

piriformis

which foramina do the anterior primary rami of s1-s4 enter the pelvis through

anterior sacral foramina

the only branch of the sacral plexus which exits superior to the piriformis is the ____ nerve

superior gluteal

impingement of anterior gluteal muscles causes what? why?

trendelenburg's gait

prevent pelvis from slumping to unsupported side during gait

impingement of what nerve is one cause of sciatica

nerve to the piriformis

which branches of the sacral plexus supply the pelvis

nerve to piriformis

nerves to levator ani and coccygeus

nerve to external anal sphincter

pudendal nerve

impingement of what nerve may cause sexual dysfunction

pudendal nerve

what are the 2 routes by which sympathetic fibers reach the pelvis

downward cont. of sympathetic trunk

downward cont. of aortic plexus (superior hypogastric plexus)

the left and right sympathetic trunks join together in front of the coccyx to form what

ganglion impar

t/f

the superior hypogastric plexus usually contains parasympathetic fibers

false - contains sympathetic from lumbar splanchnic nerve