Pelvic Bones and Cavity lecture ii Flashcards
the sacrum consists of _ fused verebrae
5
sacrum: superior articular processes their facets articulate with _ vertebra
their facets articulate with L5 vertebra
sacrum: auricular surface forms the _ part of the sacroiliac joint btwn _ and _; is somewhat _-shaped and covered with _
on lateral side; forms the synovial part of the sacroiliac joint btwn the sacrum and ilium; it is somewhat ear-shaped and covered with hyaline cartilage
pelvic inlet has _ opening into the _ pelvis
superior opening into the lesser (true) pelvis
t/f: greater pelvis is part of the pelvic cavity
FALSE; is NOT part of the pelvic cavity! only lesser pelvis is
pelvic outlet _ opening into/exit from the _ pelvis
inferior opening into/exit from the lesser pelvis
lesser pelvis (pelvic cavity) is the space btwn _ and _
space btwn pelvic inlet and pelvic outlet
pelvic brim is the bony edge of rim surrounding the _
bony edge of rim surrounding the pelvic inlet
joints of the pelvic girdle (2)
- pubic symphysis
2. sacroiliac
pubic symphysis btwn bodies of _ and _ bones
btwn bodies of rt and lt pubic bones
pubic symphysis classification:
cartilaginous; symphysis (secondary cartilaginous)
sacroiliac btwn _ and _
(2 of these) btwn sacrum and ilium
sacroiliac classification:
partly synovial; plane and partly fibrous; syndesmosis
ligaments of the pelvic girdle: the _ and _ ligaments, respectively, convert the 2 sciatic notches into the greater sciatic foramen and lesser sciatic foramen
sacrospinous and sacrotuberous ligaments respectively
the pelvic outlet is formed by the:
by the:
- inferior tip of the coccyx
- inferior edges of both ischial tuberosities
- and inferior edge of the pubic symphysis joint
pelvic space; space _ to the pelvic brim btwn the _ of the two ilia
space superior to the pelvic brim btwn the alae of the two ilia
the 2 conjoined ischiopubic rami form the _
pubic arch (an upside down V)
comparison of male and female bony pelves: pelvic inlet (superior pelvic aperture)
male: heart-shaped, narrow
female: oval and rounded; wide
comparison of male and female bony pelves: pelvic outlet (inferior pelvic aperture)
male: comparatively small
female: comparatively large
comparison of male and female bony pelves: pelvic arch and subpubic angle
male: narrow (<70 degrees)
female: wide (>80 degrees)
abdominal aorta branches: testicular artery travels through _ and inside _ into _ to supply testes
(male) travels through inguinal canal and inside spermatic cord into scrotum; supplies testes
abdominal aorta branches: ovarian artery travels through _ to supply ovary
(female) travels through suspensory ligament; supplies ovary
abdominal aorta branches: inferior mesenteric artery supplies part of _
supplies part of LI
abdominal aorta branches: median sacral artery arises from _ just barely proximal to its bifurcation; supplies (4)
arises from aorta just barely proximal to its bifurcation; supplies some lumbar vertebrae, sacrum, coccyx, and (minor contribution to) rectum
abdominal aorta divides into the _ and _ arteries
rt and lt common iliac arteries
each common iliac artery divides into an _ and _ artery
internal and an external iliac artery
arteries of the external iliac artery: (2)
deep circumflex artery and inferior epigastric artery
deep circumflex artery branch of _ artery before it leaves abdomen to become _ artery
branch of external iliac artery before it leaves abdomen to become femoral artery
inferior gastric artery branch of _ artery before it leaves _
branch of external iliac artery before it leaves abdomen
internal iliac artery descends a bit and divides into an _ and _ division
anterior division and a posterior division
t/f: anterior division of the internal iliac artery gives off many branches
true
obturator artery branch of _ artery; exits pelvic cavity through _, supplies (4)
branch of anterior division of internal iliac artery; exits pelvic cavity through obturator foramen, supplies: pelvic muscles, ilium, head of femur, and thigh muscles
inferior vesicle artery branch of _ ; supplies _
(males) branch of anterior division of internal iliac artery; supplies prostate gland
uterine artery branch of _; supplies _ and _
(females) branch of anterior division of internal iliac artery; supplies uterus and vagina
middle rectal artery branch of _ artery; supplies _ and, in males, _
branch of anterior division of internal iliac artery; supplies rectum and, in males, seminal vesicles
internal pudendal artery branch of _ artery; descends to exit the pelvic cavity through the _, loops around the _ spine and enters the perineum to supply, among other things, the _ or _
branch of anterior division of internal iliac artery; descends to exit the pelvic cavity through the greater sciatic foramen, loops around the ischial spine, and enters the perineum to supply, among other things, the penis or clitoris
inferior gluteal artery branch of _ artery; exits pelvic cavity through _, supplies the muscles of _ and posterior _
branch of anterior division of internal iliac artery; exits pelvic cavity through greater sciatic foramen, supplies the muscles of skin of the buttocks and posterior thigh
posterior division of the internal iliac artery gives off these 3 branches
- iliolumbar artery
- lateral sacral arteries
- superior gluteal artery
iliolumbar artery travels to the _, then divides to supply these 3 muscles
travels to the iliac fossa, then divides to supply the iliacus, psoas major, and quadratus lumborum muscles
lateral sacral arteries send branches through the _, supply the _ muscles and _
the anterior sacral foramina, supply the erector spinae muscles and spinal meninges
superior gluteal artery supplies
gluteal muscles
