Pelvis Flashcards
Bony pelvis
os coxae (pelvic bones)
sacrum
coccyx
ileum
pubis
ischium
Pelvic girdle joints
sacroiliac joints
pubic symphysis
Pelvic ligaments
sacro(tube)rous ligament (ischial tuberosity)
sacrospinous ligament- ischial spine
posterior sacroiliac ligaments
What do pelvic ligaments do?
they decrease excessive movement and increase pelvic stability
Sciatic foramina
functions as a passageway for nerves, blood vessels and muscle tendons
greater and lesser sciatic foramen
The sciatic nerve
derived from the lumbrosacral plexus
exits the pelvis via greater sciatic formen
passes inferior to the piriformis muscle
“longest and largest nerve in the body’
Pelvic inlet vs outlet
outlet at the bottom
inlet at the top
False pelvis
above pelvic inlet
posterior border-lumbar vertebrae
lateral borders-upper portions of the ilium
anterior border-abdominal wall
False pelvis contents
female pelvis-uterine tubes, ovaries, uterus, superior portion of urinary bladder, lower intestines
True pelvis
below pelvic inlet
Borders of the true pelvis
posterior border-sacrum and coccyx
lateral borders-inferior part of ilium and ischium
anterior border-pubic bones
Lesser pelvis contents
urinary bladder
seminal glands
prostate
rectum
cervix and vagina
Pelvic diaphragm
piriformis
coccygeus
obturator internus
levator ani
levator ani
iliococcygeus
pubococcygeus
puberorectalis
rectal sling
pelvic diaphragm openings
anal hiatus
urogenital hiatus
