Unit 3 Pelvis Flashcards
Region of the trunk that lies below the abdomen
Pelvis
Bones of the pelvis
Innominate bones:
Ilium
Ischim
Pubis
Sacrum
Coccyx
Articulation of the lumbosacral joint
L5 and sacrum
Lumbosacral joint consists of:
1 joint between L5 and S1
2 zygapophyseal joints
Type of lumbosacral joint between L5 and S1
2ndary cartilaginous joint (synovial)
Type of the zygapophyseal joints in the lumbosacral joint
Synovial
Ligaments of the lumbosacral joint
Iliolumbar ligament
Lumbosacral ligament
Which lumbosacral ligament limits axial rotation and anterior glide of L5 on the sacrum?
Iliolumbar ligament
Articulation of the sacrococcygeal joint
Sacrum and coccyx
What type of joint is the sacrococcygeal joint
2ndary cartilaginous (synovial)
Is movement possible in the sacrococcygeal joint?
Yes
Articulation of the sacroiliac joints
Sacrum and iliac bones
Joint type of the sacroiliac joints
Synovial joint of plane variety
Is there movement in the sacroiliac joints?
Yes- limited
Ligaments of the sacroiliac joints
Anterior sacroiliac
Post sacraliliac
Interosseous sacroiliac
Sacrotuberous
Sacrospinous
Ligament that opposes axial translation of the sacrum and separation of the SI joints
Ant sacroiliac ligament
Very strong and tough ligament that resists counternutation
Post sacroiliac ligament
Ligament that fills in the irregular spaces posterior and superior to the sacroiliac joint
Resists joint separation and ant and inf movement of the sacrum
Interosseous sacroiliac ligament
Sacroiliac ligament that stabilizes against nutation
Sacrotuberous
Sacroiliac ligament that opposes forward tilting of the sacrum during weight bearing
Sacrospinous
Articulation of symphysis
Between 2 pubic bones
Type of joint for the pubic symphysis
2ndary cartilaginous
Ligaments of the pubic symphysis
Superior pubic
Inferior pubic
Movement of the pubic symphysis
Almost no movement
False pelvis in women:
In men:
Women- shallow
Men- Deep
Pelvic inlet in women:
Men:
Women- circular
Men- heart-shaped
Sacral promontory in women
In men
Women- not indented
Men- indented
Angle at pubic arch for women-
For men
Women- larger
Men- smaller
Ischial spines for women-
For men-
Women- turned less medially
Men- projects into the pelvic cavity
Ischial tuberosities in women
In men
Women- everted
Men- turned in