Pelvic Perineal Osteology Arthrology Flashcards
medial ascpect of the iliac fossa contains what
illiacus muscle
acruste line part of what
pelvic brim and linea terminalis
auricular surface of ilium
medial aspect, articulates with auricular surface of sacrum
iliac tubercle and tuberosity
tubercle projects superiorly
tuberosity is medial aspect
ASIS is the ___ attachment for __
superior for inguinal ligament
pubic tubercle is ___ to the pubic crest
lateral
obturator crest
ridge on the lateral aspect of the superior pubic ramus
obturator groove
inferior to obturator crest, continuous with obturator foramen,
-transmits obturator VAN
iliopubic eminence
at iliopubic junction, projects anteriorly
sacral tuerosity
lateral to the lateral sacral crest, forms the firbous articulation with the iliac tuberosity
posterior sacral foramina
smaller than anterior sacral foramina, transmit dorsal ramus of sacral spinal nerves
sacral hiatus
resultant gap left by absence of lamina and spinous process of S5
sacral canal
continuation of verterbal foramina, transmits cauda equina
what is spondyloisthesis
abnormal anteriorly directed separation of the L5 verterbal segment from the sacrum
what is the pelvic brim formed by
sacral promentory, superior edge of sacral ala, arcuate line of ilium, pectin pubis, posterior edge of pubic crest and superior edge of pubic symphysis
what is the inferior pelvic aperture (pelvic outlet) bound by
the inferior edge of pubic symphysis, inferior pubic and iscial rami, ischial tuberosities, sacrotuberous ligaments, and the coccyx
parts of coccyx: coccygeal cornu
articulate with sacral cornau
coccyx transverse process only on which one
most superior segment
what is the inferior projection of the coccyx called
tip
what is an anthropoid pelvis
elongated anterior to posterior
what is a platypelloid pelvis
pelvis elongated laterally
pelvic fractures or crush fractures what is often broekn
superior and inferior pubic rami on both sides
what is the interpubic disc and made of what
fibrocartilaginous disc between right and left pubic symphyseal surfaces
ligamentum flavum
pale yellow fibers which travel on the ventral surface of verterbal lamina onto the posterior wall of the sacral canal
anterior longitudinal ligament
travels on the ventral surface of the vertebral body onto ventral surface of sacrum
posterior longitudinal l
travels on dorsal surface of vertebral bodies onto anterior wall of sacral canal
iliolumbar Ligament attachments
travels from the L5 TP to iliac crest
lumbosacral ligament attachments
L% TP and body to sacral ala
where does the inguinal ligament run
from the pubic tubercle of the pubis to the ASIS
sacrospinous ligament runs
from ventral sacrum to ischial spine
sacrotuberous ligament runs
from ventral sacrum to ischial tuberosity
posterior sacroiliac ligament 2 parts
long posterior sacroiliac ligament
-2 bands that originate from PSIS and median sacral crest, blends inferiorly with sacrotuberous ligament
short posterior sacroiliac ligament
- originates from median sacral crest
- insedrts on posterior surface of iliac crest and iliac tuberosity