pelvic bone Flashcards
what line separates the false and true pelvis?
the oblique line
what does the oblique line form?
the pelvic inlet
what is a specific portion of the oblique line?
the linea terminalis
what forms the hip joint?
the acetabulum
what does the obturator foramen consist of?
obturator membrane and the obturator canal
what is on the posterior margin of the pelvis?
the greater sciatic notch, ischial spine, the lesser sciatic notch
where does the posterior margin of the pelvis terminate?
the ischial tuberosity
what is the anterior margin of the pelvis marked by?
the anterior superior iliac spine, the anterior inferior iliac spine, the pubic tubercle
what part of the pelvis is usually used for bone marrow biopsies?
the iliac crest
what makes up the pelvic inlet?
promontorium, ala, arcuate line, pecten pubis, pubic crest, pubic symphisis
what are the differences between the male and female pelvis?
female promontorium more accentuated
female ischial spine more medial
pelvic inlet female heartshaped
what is on the superior and inferior of the symphysis pubis?
superior and inferior pubic ligament
what covers the symphysis pubis?
hyaline ligament
what connects the symphysis pubis to the pubis?
fibrocartilage ligament
what are the 3 pelvic rings?
pelvic inlet - main
obturator and sciatic foramen - subsidiary
what are the four fibroosseus rings?
the greater and lesser sciatic notches and their respective sacrospinal and sacrotuberal ligaments
is the lesser sciatic foramen above or lower to the pelvic floor?
lower
what does the position of the sciatic foramen indicate?
eases communication between perineal and gluteal
what are the 2 muscles of the pelvic wall?
obturator internus and piriformis
what are the borders of the pelvic outlet?
posteriorly: tip of the coccyx
anteriorly: arch of the pubis
lateral: ischial tuberosity and sacrotuberal ligament
what does the pelvic floor separate?
the pelvic cavity and the perineal
the greater sciatic foramen is located above the … and thus its function is to connect between the … and ….
pelvic floor, pelvic cavity, gluteal region of the limb
the lesser sciatic foramen is located under the … and thus its function is to connect between the … and ….
pelvic floor, perineum, and gluteal
