Pelvic Girdle Flashcards
What is the pelvic girdle?
A ring of bone providing articulation for the lower limbs with the trunk consisting of the two innominate bones and the sacrum.
What are the two components that make up the pelvic girdle?
The two innominate bones and the sacrum.
How does each innominate bone articulate with the sacrum?
Posteriorly by a synovial joint.
How do the innominate bones articulate with each other?
Anteriorly at the symphysis.
With which vertebra does the sacrum articulate superiorly?
The fifth lumbar vertebra.
What is the joint called where the sacrum articulates with the fifth lumbar vertebra?
The lumbosacral joint.
With which structure does the sacrum articulate inferiorly?
The coccyx.
What is the name of the joint between the sacrum and the coccyx?
The sacrococcygeal joint.
What is the primary function of the skeletal pelvis?
To provide great strength for the transfer of weight from the trunk to the lower limbs when standing or to the ischial tuberosities when sitting
What has been sacrificed for the stability of the pelvic girdle?
Loss of mobility at both the sacroiliac joint and the symphysis pubis
Besides weight transfer, what is another function of the pelvis?
Supports the pelvic viscera
What type of muscle attachments does the pelvis provide?
Extensive attachments for muscles of the trunk and lower limb
In females, what additional support does the pelvis provide?
Bony support for the birth canal
Fill in the blank: The pelvis enables weight transfer from the trunk to the lower limbs and also _______.
supports the pelvic viscera
True or False: The pelvic girdle enhances mobility at the sacroiliac joint.
False
