Post on 16-Apr-2017
The PelvisThe Pelvis
Raymond G Buick FRCS
The PelvisTwo functions
1. connects the vertebral column to the femurs.• bear the weight of the upper body and transfers that weight
from the axial skeleton to the appendicular skeleton• provide attachments for muscles of locomotion and posture.2. contain and protect pelvic and some abdominal viscera• urinary tracts• internal reproductive organs• provide attachment for external reproductive organs and
associated muscles and membranes
The PelvisBones• sacrum• 2 hip bones
(innominate bone)
Joints• sacro-iliac• pubic symphysis
The PelvisBones• sacrum• 2 hip bones
(innominate bone)made up of 3 bones
iliumilium
ischiumischium
pubispubis
The Pelvic Girdle
iliumilium
sacrumsacrum
ischiumischium
pubispubis
AuthorOriginal uploader was Wiechers at nl.wikipedia
anterior superior anterior superior iliac spineiliac spine
iliac crestiliac crest
anterior inferior anterior inferior iliac spineiliac spine
iliopubic iliopubic eminenceeminence
pubic tuberclepubic tubercle
iliac fossailiac fossa
iliac fossailiac fossa sacro-iliac jointsacro-iliac joint
iliac fossailiac fossa sacro-iliac jointsacro-iliac joint
symphysis pubissymphysis pubis
iliac fossailiac fossa sacro-iliac jointsacro-iliac joint
symphysis pubissymphysis pubis
inferior pubic ramusinferior pubic ramus
superior pubic ramussuperior pubic ramus ischiumischium
anterior superior anterior superior iliac spineiliac spine
anterior inferior anterior inferior iliac spineiliac spine
posterior inferior posterior inferior iliac crestiliac crest
ischial ischial tuberositytuberosity
ischial spineischial spine
greater sciatic greater sciatic notchnotch
lesser notchlesser notch
greater sciatic greater sciatic notchnotch
obturator obturator foramenforamen
lesser notchlesser notch
anterior superior anterior superior iliac spineiliac spine
ischial ischial tuberositytuberosity
anterior inferior anterior inferior iliac spineiliac spine
iliac crestiliac crest
ischial spineischial spine
posterior inferior posterior inferior iliac crestiliac crest
symphysis pubissymphysis pubis
Acetabulum
ischial ischial tuberositytuberosity
anterior superior anterior superior iliac spineiliac spine
superior pubic superior pubic ramusramusanterior inferior anterior inferior
iliac spineiliac spine
Acetabulum
iliumilium
ischiumischium
pubispubis
The Pelvic Girdle
JOINTS
• sacro-iliac
• pubic symphysis
The Pelvic Girdle
JOINTS
• sacro-iliac
• pubic symphysis
The Pelvic Girdle
• sacro-iliac
• pubic symphysis
The Pelvic Girdle
• sacro-iliac– compound joint
• synovial joint• fibrous joint
• pubic symphysis
The Pelvic Girdle• sacro-iliac
– compound joint• synovial joint• fibrous joint
The Pelvic Girdle• sacro-iliac
– compound joint• synovial joint• fibrous joint
The Pelvic Girdle• sacro-iliac
– compound joint
Anterior • synovial joint
The Pelvic Girdle• sacro-iliac
– compound joint
Anterior • synovial joint
Posterior • fibrous joint
The Pelvic Girdle
• sacro-iliac
• pubic symphysis– secondary cartilaginous joint
The Pelvic Girdle
• sacro-iliac
• pubic symphysis– secondary cartilaginous joint– fibrous cartilage
• interpubic disc
hyalinehyaline
fibrocartilagefibrocartilage
Al please Al please redrawredraw
Joints
•Fibrous
•Cartilaginous
•Synovial
Joints
•Fibrous
•Cartilaginous
•Synovial
sutures
syndesmoses
gomphosis
Joints
•Fibrous
•Cartilaginous
•Synovial
Primary cartilaginous joints – synchondroses
Secondary cartilaginous joints – symphyses
The PelvisTwo functions
1. connects the vertebral column to the femurs.
2. contain and protect pelvic and some abdominal viscera
The PelvisTwo functions
1. connects the vertebral column to the femurs.• bear the weight of the upper body and transfers that weight
from the axial skeleton to the appendicular skeleton• provide attachments for muscles of locomotion and posture.
2. contain and protect pelvic and some abdominal viscera
sacroiliac jointsacroiliac joint
hip jointhip joint
sacro-iliac joint
sacroiliac jointsacroiliac joint sacro-iliac joint
sacro-iliac jointjoint surfaces
sacro-iliac ligaments
sacro-iliac jointjoint surfaces– irregular contour– limited mobility
sacro-iliac jointjoint surfaces– irregular contour– limited mobility
sacro-iliac ligaments– posterior sacro-iliac ligaments– interosseous sacro-iliac ligaments
sacro-iliac jointjoint surfaces– irregular contour– limited mobility
sacro-iliac ligaments– posterior sacro-iliac ligaments
– interosseous sacro-iliac ligaments
sacro-iliac jointinterosseous sacro-iliac ligaments
sacro-iliac joint
sacro-iliac joint
sacro-iliac jointjoint surfaces– irregular contour– limited mobility
sacro-iliac ligaments– posterior sacro-iliac ligaments– interosseous sacro-iliac ligaments– anterior sacro-iliac ligaments
The sacroiliac jointsjoint surfaces
sacro-iliac ligaments
very taut joint capsules
iliolumbar ligament
accessory ligaments sacrospinosis sacrotuberous
The sacroiliac jointsvery taut joint capsules
joint surfaces
sacro-iliac ligaments
iliolumbar ligament
accessory ligaments sacrospinosis sacrotuberous
iliolumbar ligament
The sacroiliac jointsvery taut joint capsules
sacro-iliac ligaments
iliolumbar ligament
accessory ligaments sacrospinosis sacrotuberous
sacrotuberous ligament
The sacroiliac jointsvery taut joint capsules
sacro-iliac ligaments
iliolumbar ligament
accessory ligaments sacrospinosis sacretubeorus
sacrospinosis ligament
The sacroiliac joints
sacrospinosis ligament
ischial ischial tuberositytuberosity
ischial spineischial spine
sacrotuberous ligament
The Pelvis
FALSE PELVIS
TRUE PELVIS
The Pelvic Girdle
FALSE PELVIS
TRUE PELVISpelvic inletsuperior pelvic aperture
The Pelvic Girdlefemale – v – male
The Pelvic Girdlefemale – v – male
• wide pubic arch> 800
< 700
The Pelvic Girdlefemale – v – male
• wide pubic arch• pelvis - wider and shallower
> 800
< 700
The Pelvic Girdlefemale – v – male
• wide pubic arch• pelvis - wider and shallower• pelvic inlet F=oval: M =heart-shaped
The Female Pelvic Girdle
ischial spineischial spine
interspinous distanceinterspinous distance
The EndThe End
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