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77 Cards in this Set

  • Front
  • Back
Greater and Lesser pelvis is divided by
pelvic brim
Pelvic Inlet (pelvic brim)
Anteriorly- Public Crest
Laterally- Iliopectineal Line
Posteriorly- Sacral Alae and Sacral Promontory
Pelvic Outlet
Posteriorly - Coccyx
Laterally- Ischiopubic rami
Ischial Tuberosities
Sacrotuberous Ligament
Anteriorly- Pubic Arch
Pelvic Cavity
space between pelvic inlet and pelvic outlet
Boudaries of the False (Greater) Pelvis
Anteriorly- lower anterior ab wall

Laterally- Iliac Fossae
Iliacus muscle

Posteriorly - Lumbar Vertebra
ASIS and upper Margin of Pubic Symphysis lie in
the same Vertical Plane
Tip of the coccyx and upper margin of pubic symphysis lie in
the same horizontal plane
Urogenital Triangle lies in what plane
transverse (axial) plane
Anal Triangle lies in what plan
coronal (veritcal) plane
Synovial plane joint between the auricular surface of the sacrum and iliac bones
Sacroiliac Joint
Fibrocartilage between pubic bones
Pubic Symphysis
Cartilaginous between bodies of last sacral and first coccygeal vertebrae
Sacrococcygeal Joint
Ligament?
L5 transverse processes to Iliac crest
Iliolumbar ligament
Ligament?
lateral margin of the sacrum to ischial tuberosity
and forms the lesser sciatic forament with sacrospinous ligament
Sacrotuberous Ligament
Ligament?
Anterior Surface of the sacrum and coccyx to ischial spine
- forms greater sciatic foramen
Sacrospinous Ligament
Function of Iliolumbar ligament
limit the rotation of LV5 on the sacrum and assist the articular processes in preventing anterior gliding of LV5 on the sacrum
function of the sacrotuberous and sacrospionous ligament
PREVENT the sacrum from being pushed inferiorly and the pelvis rotated anteriorly
Female Pelvis depth?
Shallower than Males
Female Vs Male Pelvis shape of pelvic inlet?
Oval in females
heart-shaped males
Female Pelvis size of outlet
larger in females
Female Pelvis
size of pelvic cavity
roomier
shorter inlet: outlet distance
Female Pelvis
ischial tuberosities
Everted
Female sacrum comparied to males
shorter, wider and flatter in female
Female Pubic Arch
rounder and wider
Anterior Pelvic Wall made up of
pubic bone, pubic rami and symphysis pubis
Posterior Pelvic Wall made up of
Sacrum/coccyx
Piriforms
Pelvic Fascia
Lateral Pelvic Wall made up of
Hip Bone
Obturator Membrane
Obturator Internus and fascia
Sacrospinous ligament Sacrotuberous ligament
Inferior/ pelvic floor is formed by
the muscular pelvic diaphragm
Piriformis Muscle
-exits the pelvis through the greater sciatic forament

-inserts on the greater trochanter of femur
Piriformis Muscle innervated by
nerve to the piriformis
from anterior rami of S1 and S2
Piriformis Muscle Action
Lateral Rotator of hip joint
Abducts thigh
Obturator Internus Muscle
- Obturator membrane and adjacent bone

- Muscle fibers converse on a tendon that leaves the pelvis through lesser sciatic foramen

-inserts on greater trochanter of femur
Obturator Internus Muscle innervation
Nerve to the Obturator Internus
from anterior rami of L5 and S1 (S2)
Obturator Internus Muscle Action
Lateral rotator of thigh
Pelvic Diaphragm consists of
Levator Ani and (Ischio-)coccygeal muscles and their fasciae
Tendinous Arch is formed by
a thickening of the pelvic fascia covering the obturator internus muscle
Levator Ani Muscles
-Iliococcygeus Muscle
-Pubococcygeus Muscle
-Puborectalis Muscle
-Levator Prostatae/ sphincter vaginae
Iliococcygeus Muscle
takes origin from the tendinous arch to raphe between anal canal and coccyx
Pubococcygrus Muscle
pubis to vagina/prostate, anorectal junction to perinal body
Puborectalis Muscle
-part of external anal sphincter from pubis to junction of anus and rectum
-thicker, inferomedial part of the levator ani muscle
Levator Prostatae / Sphincter Vaginae
anterior fibers; insert and support/stabilize the perineal body
Forms a U-shaped muscular sling that passes posterior to the anorectal junction
and responsible for the anorectal flexure and plays a major role in maintaining fecal continence
Puborectalis Muscle
Forms an efficient muscular sling that supports and maintains pelvic viscera in place
Levator Ani Muscle
Resists increase intrapelvic pressure during straining and expulsive efforts of the abdominal muscle (as in caughing)
Levator Ani Muscle
Important sphincter action on the anorectal junction also serves as a sphincter of the vagina in females
Levator Ani Muscle
Levator Ani is innervated by
nerve to levator ani
(perineal branch of S4)
(Ischio-)Coccygeus Muscle
small triangular muscle arising from the ischial spine and insert into the sacrum and coccyx
-covered inferiorly by the sacrospinous ligament
Action of Coccygeus Muscle
assists the levatore ani muscles in supporting the pelvic viscera
Coccygeus Muscle is innervated by
branches of S4 and S5
within the upper part of the transverse cervical ligament the uterine artery....
passes toward the cervix above the uterus
(an important surgical relationship during a hysterectomy)
Arteries of the Pelvis
Internal Iliac Artery
Superior Rectal Artery
Median Sacral Artery
Ovarian/Testicular Artery
Anterior Division of the Internal Illiac Artery
- Obturator Artery
- Umbilical Artery
- Uterine Artery
- Vaginal Artery
- Inferior Vesical Artery
- Middle Rectal Artery
- Internal Pudendal Artery
- Inferior Gluteal Artery
Posterior Division of the Internal Iliac Artery
- Iliolumbar Artery
- Lateral Sacral Artery
- Superior Gluteal Artery
What artery?
leaves the pelvis through the greater sciatic foramen superior to piriformis muscle
Superior Gluteal Artery
What artery?
is anterior to sacral plexus
Lateral Sacral Artery
What artery?
Passes superiorly across pelvic inlet
Iliolumbar Artery
What artery?
is below the piriformis
Inferior Glutal artery
What artery?
a base of urinary bladder, prostate and seminal vesicle (male) and is absent in female
Inferior Vesical Artery
What artery?
vagina and base of bladder and replaces inferior vesical artery
Vaginal Artery
What artery?
crosses ureter anteriorly and anastomoses with vaginal and ovrian arteries
Uterine Artery
What artery?
into obturator canal
Obturator Artery
Proximal part of the umbilical artery gives rise to
Superior Vesical Artery
-to supply upper part of the urinary bladder
distal obliterated part of the umbilical artery becomes
Medial Umbilical Ligament
What artery arises from abdominal aorta at level of LV1
Ovarian/Testicular Artery
What artery is at the bifurcation of the aorta into 2 common iliac arteries at LV4
Median Sacral Artery
What artery is a sirect continuation of hte inferior mesenteric artery
Superior Rectal Artery
Provides a pathway for pelvic cancer metastasize to the spinal cord and brain
Vertebral Venous Plexus
Lymph drainage from the pelvis is primarily to the:
- External and Internal Iliac Nodes
- Common Iliac Nodes
Normal Posistion of the uterus
Anteverted and Anteflexed
-places body of the uterus above the bladder
Retroverted Uterus is more
prone to prolapse
Angle of antflexion
between body of uterus to cervix
Angle of anteversion
between axes of cervix of vagina
main passive support of the uterus
transverse cardinal ligament
Vesicouterine Pouch
bladder and uterus
Rectouterine Pouch
-Rectum and Uterus
-lowest point in the peritoneal cavity in females
-Site for accumulation of pathological fluids
Ovarian ligament and round ligament of the uterus are remnants of
gubernaculum
Transverse Cervical and Uteroscaral ligaments are condensations of
Endopelvic fascia