Pelvis and Perineum
1
Pelvis ·
region where trunk andlower limbs meet
·"Delvis":basin
Bonypelvis 21 bones:
·
Inip bones-symphysis publis
·sacrum
> sacroiliac joints
COCLYX
Division of pelvis by:
Pelvic brim
promontory
I
·sacral
ileopectineal line E
True pelvis ·
·symphysis publis
pelvic inlet.boundaries
&
pelvic outlet
·
P: cOCC yX
·A:public arch
· L:ischial tuberosity
+sacrospinous and
sacrotuberous ligament
↳ divides sciatic notch
to:greater and
lesser sciatic
foramen
, Pelvis and Perineum
1
Joints of the pelvis sacroiliac:synovial joint
·posterior andinterossers sacroiliac ligament
·
anterior sacroiliac ligament
·sacroiliac joints ·function:transmitweightfrom vertebra to bony pelvis
sacrococcygeal:cartilaginous joint
·manymovements possible
symphysis pubis.canilaginous joint
·no possible
movement
·articular surface:hyaline cartilage
sex differences of pelvis
MALES FEMALES
false pelvis deep shallow
pelvic inlet heart-shapedf transverselyoval
pelvic cavity shorter, wider
pelvic outletischial tuberosity turned larger;Ischial tuberosityeverted
sacrum shorter, wider, flatter
public arch rounded, wider
soints
Pregnancyandpelvic
·
ligamentsrelayedby: estrogenone
relaxin
1
Pelvis ·
region where trunk andlower limbs meet
·"Delvis":basin
Bonypelvis 21 bones:
·
Inip bones-symphysis publis
·sacrum
> sacroiliac joints
COCLYX
Division of pelvis by:
Pelvic brim
promontory
I
·sacral
ileopectineal line E
True pelvis ·
·symphysis publis
pelvic inlet.boundaries
&
pelvic outlet
·
P: cOCC yX
·A:public arch
· L:ischial tuberosity
+sacrospinous and
sacrotuberous ligament
↳ divides sciatic notch
to:greater and
lesser sciatic
foramen
, Pelvis and Perineum
1
Joints of the pelvis sacroiliac:synovial joint
·posterior andinterossers sacroiliac ligament
·
anterior sacroiliac ligament
·sacroiliac joints ·function:transmitweightfrom vertebra to bony pelvis
sacrococcygeal:cartilaginous joint
·manymovements possible
symphysis pubis.canilaginous joint
·no possible
movement
·articular surface:hyaline cartilage
sex differences of pelvis
MALES FEMALES
false pelvis deep shallow
pelvic inlet heart-shapedf transverselyoval
pelvic cavity shorter, wider
pelvic outletischial tuberosity turned larger;Ischial tuberosityeverted
sacrum shorter, wider, flatter
public arch rounded, wider
soints
Pregnancyandpelvic
·
ligamentsrelayedby: estrogenone
relaxin
