Pelvis I and II Flashcards
(50 cards)
what two bones make up the obturator foramen
the ischium and the pubis
what bones converge to make the acetabulum
the ilium, ischium and pubis
what is the arcuate line (of the ilium) continuous with?
the pectineal line
what kind of joint is the sacroiliac joint
synovial
what makes up the pelvic brim
sacral promontory
arcuate line of the ilium
pectineal line of the pubis
greater pelvis vs lesser
greater is above arcuate line and is the FALSE pelvis
lesser below and is the true pelvis
what kind of joints are the lumbosacral, sacrococcygeal, and the pubic symphisis?
secondary cartilaginous- fibrocartilagenous
What creates the lesser sciatic foramen? superior sciatic foramen?
lesser-created by sacrotuberous joint between the sacrum and the ischial
tuberosity
greater- formed by sacrospinous ligament formed by the sacrum and the spinous process
males v/s female structure sciatic notch- pelvic inlet- pelvic canal- ITs- Pubic arch and subpubic angle- sacrum-
sciatic notch- hugs more in males
pelvic inlet- male is heart-shaped, women are round
pelvic canal- short and round for women, men, elongated and funnel-shaped
ITs-come in on males, spread out in females
Pubic arch and subpubic angle- wider in females (90 degrees) and narrower in males (70)
sacrum- females have short and brad sacrum, males long and narrow
what path does the obturator internus muscle pass thru
-obturator inturnus goes thru the lesser sciatic foramen to attach to the greater trochanter
piriformis start and end
- starts attached to the sacrum and passes thru the greater sciatic foramen to go to the greater trochanter
- bed for sacral nerve plexus
pelvic diaphragm
what does it do
-supports abdominal viscera and helps to hold poop and urine
what makes up the pelvic diaphragm?
- the levator ani (pubococcygeous and the illiococcygeous and the puborectalis) and the coccygeous
where does the coccygeous muscle extend from and to?
from the ischial spine to the sacrum/coccygeous
where does the iliococcygeous muscle arise from and go to?
from the tendinous arch and ischial spine to the coccyx
what’s an important feature of the ureter in females vs males?
-ureter will run medial to the uterine artery in the female
what crosses (medially) the ureter on the male?
the ductus (vas) defernens
what is the bladder made up of?
-apex, body, fundus, neck, trigone
what’s the bladder trigone
- 2 ureteric orifices on either side of the ureteric meatus that pump pee into the bladder
- the back wall of the bladder is what prevents the urine from being piped back into the ureter
how are the male and female bladders different?
the male bladder has an internal urethral sphincter next to the internal uretary meatus (opening)
where is the prostate located
right under the bladder of males
what are the four urethras in males?
preprostatic urethra (then internal sphincter) prostatic (prostate) urethra (external sphincter) membranous urethra spongy urethra
where is a kidney stone most likely to get stuck in a male urethra?
-in the membranous urethra because it’s the most narrow part (prostatic urethra is the widest)
what are some components of the prostate?
- urethral crest -bump inside
- seminal colliculus- bump
- prostatic ducts- provide nutrients to semen
- prostatic utricle -remnant
- ejaculatory ducts x2
