KIN 100 - Pelvic Girdle (lecture 16) Flashcards
What does the pelvic girdle consist of
right and left hip bones and sacrum
Functions of the pelvic girdle
- Connect the lower limb to the axial skeleton
- Transfer weight from the axial skeleton to the lower limb during standing and walking
- Provide attachment site for strong muscles of the gluteal and abdominal regions
- Provide support for pelvic organs
What bones are fused to form the hip bone
- Ilium
- Ischium
- Pubis
What do the hip bones contribute to the formation of
acetabulum (socket for the head of the femur)
How many fused vertebrae forms the sacrum
5
Describe the sacral canal
continuation of the vertebral canal an contains the cauda equina
- sacral foramina on both sides allow nerves to exit the sacral canal
Cauda equina
bundle of spinal nerves that descends past the distal end of the spinal nerve
General structure of bony pelvis in males vs female
male: Thick and heavy
Female: Thin and Light
Pelvic inlet of bony pelvis in males vs female
Male: Heart shaped, narrow
Female: Oval and rounded, wide
Subpubic angle of bony pelvis in males vs female
Male: Narrow
Female: Wide
Greater sciatic notch of bony pelvis in males vs females
Male: Narrow, inverted V shape
Female: Wide, almost 90 degree
in standing position, what two structures lie in the same vertical plane when the pelvis is in anatomical position
ASIS and pubic symphysis
When the pelvis is in anatomical position, what does the pubic symphysis do
supports the weight of the bladder and other pelvic organs
What two ligaments resist the rotation of the sacroiliac joints (pelvis)
- Sacrotuberous ligament
- Sacrospinous ligament
What does the sacrum articulate with
Articulates with the right and left hip joints
