Pelvic Girdle Flashcards
What bones is the pelvic girdle formed by?
2 coxal bones
How is the pelvic girdle attached to the axial skeleton?
Securely via sacral attachment to the lower portion (mostly the lumbar vertebrae)
What is each hipbone formed by? (3)
- Ilium
- Ischium
- Pubis
How is the ilium described? (3)
- Large
- Flaring
- Forms most of the hip
How is the ilium connected to the sacrum?
Posteriorly with the sacrum
What is the iliac crest?
Upper edge of ala
Describe the ischial tuberosity.
Roughed-up looking area that holds weight when you sit
Why is the ischial spine important in regards to the female reproductive system?
It narrows the outlet of the pelvis through which the baby passes during birth
What is the colloquial name for the ischium?
Sit down bone
Where is the ischium in relation to the coxal bone?
The most inferior part of the coxal bone
What does the greater sciatic notch allow?
Allows blood vessels and sciatic nerve to pass from the pelvic posterior into the thigh
Where is the pubic in relation to the coxal bone?
Anterior part of the coxal bone
Define: obturator foramen
Opening that allows blood vessels and nerves to pass into the anterior part of the thigh
What 2 parts is the bony pelvis composed of and what are their descriptors? (2)
- False - superior to the pelvis; flaring portion of the ilia
- True - surrounded by bone and lies inferior to the “flaring” parts of the ilia
Which part of the bony pelvis is important for childbirth?
True part
